Which Pavel DVD for Stretching

Okay
Super Joints
Relax into stretch
fast and loose
strength stretching
loaded streching
which one should I try for stretching for grappling?

I would get relax into stretch first along with either super joints or Steve Maxwells joint mobility DVD from his site. Maxwells is a “follow along” format and is geared for grapplers. The other dvds you have listed are geared more for tension creation/relaxation and building strength.