Try attaching some (old) components on a sample panel and beat the panel on something to see if they come loose. We used Velcro to attach all the electrical components (PDP, Talons, Spike, VR) on our electronics panels for Aerial Assault and nothing came loose.
You may also want to try using the heavy duty 3M/Scotch DuoLock. I find that the 10 lb. rated stuff holds better and is not as "squishy" as the Velcro is so the mounted item does not rock slightly as when attached with Velcro. It also only has one type (not hook and loop) so it is not possible to screw up and install hook opposite hook and loop opposite loop. It is on the racks next to the big rolls of Velcro at Home Depot.
Scotch-1-in-x-4-ft-Black-Extreme-Fasteners-RF6741/205520125
Scotch-1-in-x-4-ft-Clear-Extreme-Fasteners-RF6740/205520112
Scotch-1-in-x-10-ft-Black-Extreme-Fasteners-RF6761/204465400
Scotch-1-in-x-10-ft-Clear-Extreme-Fasteners-RF6760/204465393