Default behavior (snapToSlideEdge: false)

Notice how at the end, the last slide aligns to the right edge

Slide 1
Slide 2
Slide 3
Slide 4
Slide 5
Slide 6
Slide 7
Slide 8

With snapToSlideEdge: true

Slides always stay aligned to their original position

Slide 1
Slide 2
Slide 3
Slide 4
Slide 5
Slide 6
Slide 7
Slide 8