Ken and I rarely disagree, but I re-use rubber bands all the time - as long as they are in good shape!

That said, sounds like the bands you had were bad, or the wrong size.

Get some new ones as the others have suggested.

As for going to a bolt-on option, while it sounds good, unless the wing and fuse were built for a bolt-on wing, it will be a major undertaking to make this modification after they were built.

Besides, if you've advanced that far so quickly, you might consider building a more advanced plane rather than spend all that work on a trainer. Take a look at the Wingman II from The Wingsmaker. It's a very nice intermediate plane at a very modest price.

http://www.rcuniverse.com/magazine/a...rticle_id=1086

http://www.thewingsmaker.com/airplan...p?name=Wingman II (GP)