For those of you that haven't tried to put an inner tube or sure grip on- if your trying to put it on say a Black Widow recurve or the like I figured out that if you role the tube down over some rope, you can grab onto the rope a lot easier than trying to wrestle with just the rubber. You just pull on the rope thats now under the rubber and between the riser to help clear the larger areas of your bow, Longbows are easy some of the others not so much.
Store bought inner tubes are not very good looking at all, at least the ones I bought a long time ago weren't. they had little lines running along them and they appeared shiny after awhile- support our sponsors and get a sure-grip, I did after trying to be cheap, although I don't use em anymore, always turned my hand black and I wore one of them out. Beaver Tail looks much better!!