"I thought maybe gloves could help my grip, so my sling doesn't twist as easy."
I"m not trying to hog the thread, just trying to help. I picked this out of your conversation. If your sling wants to twist, maybe you have mismatched bands. There should be even pull on both limbs.
Try this...Lay your fork down face first on something flat. Fold your pouch exactly in half (so the band holes line up)and slowly lift the pouch straight up over the center of the fork. Watch the fork tips, does one come off the deck before the other? Pick the rig up stretch the bands 4 or 5 times then do the same test again. Some of this band latex is bad for being uneven. Just trying to help..Stay with it you'll figure it out, and good luck.