I see the theorey behind that wayne, but I personally wouldn't do it. Unless you can have the bolt machined perfectly with smooth radiuses on the cut down part, you will create stress points. This will cause the bolt to break prematurely while flying. I would almost go with smaller bolts if I went that route.

But if you think about it, if you hit the ground very hard you will damage the wing with both rubber bands or bolts. The benifit of the rubber bands is for breaking in softer crashes, but more times than not if you crash the plane you will have damage either way. The questions is, do you want to sacrifice a possible failure in the air for a small chance of saving a wing on a crash?

I know from experience that after a wing is broken in the air, your plane is history. A wing can be rebuilt, but when the entire plane looks like tooth picks you are done.

Wings