I probably wouldn't have an issue with a velcro strap either....except....

How do you keep the meatal part of your release aid from clanking on the rail as you're climbing? It seems to always do that.....so I just leave it attached to my bow until I hoist it up and get settled.

And....How do you know you've got it in exactly the same spot, every time (could change your draw?)?

Just different strokes....