I have big hands and would have to bend my thumb too much to get it behind the hump the other way. Besides, my way lets you put more of your thumb actually on the safety so you are pushing and pulling it rather than just pushing it. Without that hump, it is ergonomically the same as any other...
Well I've pretty much plastered this pic in almost every section of this sight but here's my Magpul MS3 sling. I really like the paraclips. My two AR's both use qd's. I like the paraclips better but not enough to switch my rifles over to them.