You can make a slip-in out of any band, really. I've made several over the years out of the Raybestos Pro Series bands. You just have to grind down one anchor, and then very carefully reweld it (without overheating the friction material in the process). The only real issue is to make sure to run the modified end of the band on the ANCHOR side, so you don't have any issues with the strut falling off.
Thx for the tip man