1. Which algorithm are you using? "Resample" in particular will drastically change the length of your tail, while the other algorithms will minimally be affected by this.
2. Good ideas! :D
3. Yep, there will be a couple options specifically for the punch, eg. a switch to toggle between equalizer of punch/tail (instead of the complete kick). These featuers will come in future updates.
Thanks for the feedback! :D