As a coach I see most snaps happen when the band is under max tension at a stretched end and the lifter jerks the last few inches. Smooth it out and shorten the lever instead. Step closer to the anchor or choke the band slightly to put you in a stronger range so you are not fighting a losing battle at end range. If you need more resistance stack bands at a modest stretch instead of torturing one thin one. And always retire a band the first day it shows cracks because they do not heal.
