Attaching armor

OK, I know there are tons of threads on this but not the one I"m specifically looking for. I"m going to use the grommets and bolts to attach my chest armor to the vest, but where I have questions is the shoulders and the back armor. I"m assuming i"m going to have to use velcro for the back armor since it has to come on and off, no biggie there. Do you guys use velcro or bolts for the shoulders? With the curvature in the shoulders and the way it should fit fairly snugly to the fabric I"m not sure I could achieve that look with bolts unless I used 4 bolts is such a small space.

I hung my shoulders with two screws each, about .400" from the top edge of the shoulder armor and 3 inches apart.

http://www.thedentedhelmet.com/show...or-Screw-Mounting-Wickedbeard-Armor-Parts-1-2

Cheers