I never sat flat (directly) on Velcro.
Instead I've always put either a toothpick sanded flat on one side, or a small piece of leather, sloping towards the crotch of the side plate and shelf.
minimizes contact and torque.
it WILL wear out where the arrow rides, but really its not a huge deal as the leather or toothpick does a fine job as a shelf.
I also took a pair of my fly tying scissors and sheared the Velcro shorter. Its kinda a bit poofy for me.
For small longbow shelfs I prefer leather like most people but still opt for the pressure point under the leather if I can get one in and not have issues. Traditional hill style shelfs are tiny, but it is still possible to get a fine strip of leather under a leather shelf plate to again minimize contact. Worth doing imho!
If your shelf is big enough (recurve or hybrid longbow), I've used pieces of broken arrows for the pressure point. I like the radius again for minimizing the minimized contact point. The smaller the better without getting to a knife point for obvious reasons.
I leave a gap in the crotch sheared right down to the sticky material, or a gap in the leather (skived) along with the pressure point itself slightly sloped. It really doesn't hold the arrow on but it does help when its on a hanger, and again.....minimizes contact. There's a bit of redundancy I keep repeating here for a reason!