I am installing side flush cups on my rifles to make sling carry more comfortable and that made me realize I don’t like the slings I’ve used. I have several different kinds and I have been disappointed with all of them for some reason or other. I’m wanting a sling that is light, non bulky, that stays on your shoulder, and stays where you adjust it to be. Is that too much to ask of a sling? What are you guys using and why do you think it is the best?