diff --git a/README.md b/README.md
index e979ecf..410f694 100644
--- a/README.md
+++ b/README.md
@@ -96,9 +96,8 @@
                 // EWMA's unit of measure is an iteration's duration
                 start := time.Now()
                 time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-                bar.Increment()
-                // we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-                bar.DecoratorEwmaUpdate(time.Since(start))
+                // we need to call EwmaIncrement to fulfill ewma decorator's contract
+                bar.EwmaIncrement(time.Since(start))
             }
         }()
     }
diff --git a/_examples/barExtender/main.go b/_examples/barExtender/main.go
index 3fbf4a8..77cd05d 100644
--- a/_examples/barExtender/main.go
+++ b/_examples/barExtender/main.go
@@ -52,9 +52,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// since EWMA based decorator is used, DecoratorEwmaUpdate should be called
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/cancel/main.go b/_examples/cancel/main.go
index 28cc8bd..9b280ab 100644
--- a/_examples/cancel/main.go
+++ b/_examples/cancel/main.go
@@ -44,9 +44,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// since EWMA based decorator is used, DecoratorEwmaUpdate should be called
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/complex/main.go b/_examples/complex/main.go
index 380dcaf..39d98e4 100644
--- a/_examples/complex/main.go
+++ b/_examples/complex/main.go
@@ -58,8 +58,7 @@
 		// EWMA's unit of measure is an iteration's duration
 		start := time.Now()
 		time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
-		bar.IncrInt64(rand.Int63n(5) + 1)
-		// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-		bar.DecoratorEwmaUpdate(time.Since(start))
+		// we need to call EwmaIncrement to fulfill ewma decorator's contract
+		bar.EwmaIncrInt64(rand.Int63n(5)+1, time.Since(start))
 	}
 }
diff --git a/_examples/differentWidth/main.go b/_examples/differentWidth/main.go
index 56e65a4..5f87f14 100644
--- a/_examples/differentWidth/main.go
+++ b/_examples/differentWidth/main.go
@@ -49,9 +49,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/merge/main.go b/_examples/merge/main.go
index bd2a26a..5f60a59 100644
--- a/_examples/merge/main.go
+++ b/_examples/merge/main.go
@@ -53,9 +53,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/multiBars/main.go b/_examples/multiBars/main.go
index c725c5e..229f4bc 100644
--- a/_examples/multiBars/main.go
+++ b/_examples/multiBars/main.go
@@ -44,9 +44,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/poplog/main.go b/_examples/poplog/main.go
index 51cfdf9..5802ff4 100644
--- a/_examples/poplog/main.go
+++ b/_examples/poplog/main.go
@@ -35,9 +35,8 @@
 			// EWMA's unit of measure is an iteration's duration
 			start := time.Now()
 			time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-			bar.Increment()
-			// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-			bar.DecoratorEwmaUpdate(time.Since(start))
+			// we need to call EwmaIncrement to fulfill ewma decorator's contract
+			bar.EwmaIncrement(time.Since(start))
 		}
 	}
 
diff --git a/_examples/progressAsWriter/main.go b/_examples/progressAsWriter/main.go
index 261a958..543843c 100644
--- a/_examples/progressAsWriter/main.go
+++ b/_examples/progressAsWriter/main.go
@@ -47,9 +47,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 			log.Println(name, "done")
 		}()
diff --git a/_examples/quietMode/main.go b/_examples/quietMode/main.go
index 321734d..658fbbe 100644
--- a/_examples/quietMode/main.go
+++ b/_examples/quietMode/main.go
@@ -62,9 +62,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/reverseBar/main.go b/_examples/reverseBar/main.go
index 4ae5f9f..8eafb85 100644
--- a/_examples/reverseBar/main.go
+++ b/_examples/reverseBar/main.go
@@ -44,9 +44,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/_examples/spinnerBar/main.go b/_examples/spinnerBar/main.go
index 6f0ccad..07526cd 100644
--- a/_examples/spinnerBar/main.go
+++ b/_examples/spinnerBar/main.go
@@ -45,9 +45,8 @@
 				// EWMA's unit of measure is an iteration's duration
 				start := time.Now()
 				time.Sleep(time.Duration(rng.Intn(10)+1) * max / 10)
-				bar.Increment()
-				// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				// we need to call EwmaIncrement to fulfill ewma decorator's contract
+				bar.EwmaIncrement(time.Since(start))
 			}
 		}()
 	}
diff --git a/example_test.go b/example_test.go
index a76a6ec..6d6ccfe 100644
--- a/example_test.go
+++ b/example_test.go
@@ -25,8 +25,7 @@
 			decor.Name(name, decor.WC{W: len(name) + 1, C: decor.DidentRight}),
 			// replace ETA decorator with "done" message, OnComplete event
 			decor.OnComplete(
-				// ETA decorator with ewma age of 60, and width reservation of 4
-				decor.EwmaETA(decor.ET_STYLE_GO, 60, decor.WC{W: 4}), "done",
+				decor.AverageETA(decor.ET_STYLE_GO, decor.WC{W: 4}), "done",
 			),
 		),
 		mpb.AppendDecorators(decor.Percentage()),
@@ -34,13 +33,8 @@
 	// simulating some work
 	max := 100 * time.Millisecond
 	for i := 0; i < total; i++ {
-		// start variable is solely for EWMA calculation
-		// EWMA's unit of measure is an iteration's duration
-		start := time.Now()
 		time.Sleep(time.Duration(rand.Intn(10)+1) * max / 10)
 		bar.Increment()
-		// we need to call DecoratorEwmaUpdate to fulfill ewma decorator's contract
-		bar.DecoratorEwmaUpdate(time.Since(start))
 	}
 	// wait for our bar to complete and flush
 	p.Wait()
diff --git a/progress_test.go b/progress_test.go
index 9f3227c..01743a7 100644
--- a/progress_test.go
+++ b/progress_test.go
@@ -157,8 +157,7 @@
 					}
 				}
 				time.Sleep(randomDuration(100 * time.Millisecond))
-				bar.IncrInt64(rand.Int63n(5) + 1)
-				bar.DecoratorEwmaUpdate(time.Since(start))
+				bar.EwmaIncrInt64(rand.Int63n(5)+1, time.Since(start))
 			}
 		}()
 	}