This is something that I have said all along.

Rubber bands are there for a reason.

You should only switch to bolts if you feel confident enough in your abilities to risk ripping you plane to pieces.

Bolts do NOT shear! (And if they do, there won't be much left of your airplane)

Example. a 1/4-20 Nylon bolt has a 432lb shear strength (According to: http://www.plasticnutsandbolts.com/m...ltestdata.html).

What do you think will happen if you lay your airplane on its side and set a 432lb weight on it?