It may be a few months before I get to that so here are a few pictures from my Prestige to spark some ideas. I utilize the gear plate to attach a 3/4" nylon strap (much lighter than Velcro) that runs down and around the wing tube and Velcro’s back onto itself. (Gear plate and wing tube are after all the strongest structures!)

A secondary Velcro strap then goes perpendicular to the main strap. That strap is secured underneath by 5/16” CF push rod material (used in a couple places as seen in the pictures.)

I’m sure I’ll do something similar on the VF3.

(My datalogger goes in that 'open' piece of Velcro)