I've been using the suspender for a couple of months now and i love it. Mine came with 3 different sized rubber sleeve and if you use one that's too small, it becomes painful and you experience numbness. I've been playing around with how much tape to use and how to wrap, i can now wear it for hours (i currently wear it for 6-8 hours everyday, comfortably). The only down side is that it's a pain in the butt to remove everytime you have to go pee.
I also have the VTLC with the regular and extra-large cone and can't wear it for more than an hour before the pain becomes almost unbearable. I've tried lessening the tension, but if it has any tension at all it starts to hurt again. I'm cut so maybe i need to stretch my foreskin first before it become less painful. I've kinda given up on it for now, i'll prolly try it again later. For now, i can get a really good pull for hours using the suspender.