ORIGINAL: R/C Skyjumper
Throw them rubber bands away and start using velcro , Holds better and faster to remove and easer on wing panals and cost less and holds as good or better than rubber bands- if they work on my 40 trainers and Sr Telemaster they work on anything that uses rubber bands
Most of my aircraft with removable wings are bolted rather than banded because thats what I choose to do. That does include a Sr Telemaster which was a reasonable choice because it has six engines on the wing. I do have some aircraft with banded wings mostly vintage types and choose to continue with that method for those and even includes a 1965 Midwest Corsair with a banded wing.
Skyjumper using velcro is certainly a novel and interesting approach. For some 'working airplanes' like your jump plane or in our case an aerotow plane it just may be interesting.
Could you perhaps post a photo or two of your setup?
John