I hear velcro can get annoying when you move because as the fibers detach when you bend they make noise. I've also seen adhesive backed velcro "melt" after trooping in the hot sun and leave sticky adheasive in a large ring around the strip (this was on a vinyl vest for a custom mando though). I personally use snaps because it seems reliable and quicker and easier than bolts. My vest is still yet to be trooped in though, so we'll see.