Gregg, those things that you are looking at on SG, if they are what I think they are they are terrible. They are a woven material with adhesive applied to the back. The material will start to unravel after some time and the adhesive is crazy nasty. I've used it before and i hate it!!!
I just purchased a set of limbsations in COPPERHEAD. Probably the best $20 i ever spent. I can't stop looking at the bow! He has all kinds of other designs as well, snake skin, camo, you name it, he has it.
THey are a typr of 3m adhesive and it fit and formed to my bow very well, I had to do a little trimming with a razor, no big deal. It took 10 minutes to apply and trim.