Good advice already.

However, one question. Are the bolts you were using steel? I've worn out a couple of AeroWorks models that came with blind nuts and steel bolts holding on the gear that I converted to threaded wood and nylon bolts when assembling them. Oh wait, that's not true. The first one was actually the reason for the conversion as it started life with steel and steel. When that gear tore out on a ground loop and took most of the bottom with it, I rebuilt it to accommodate the nylon bolts. When I got the 2nd model, it was converted on assembly. And both have proven the bolts are strong enough to last, yet small enough to "save the fuselage". They both have really been flown a lot. AW just recently got the Extra300 back in stock after a year or so, and the replacement is in the shop getting assembled. The other model (Yak 54) got replacement servos a couple of weeks ago. It's gotten pretty ragged since 2009. About the only shiny parts on it were the nylon gear bolts that got changed every couple of years. The wood doesn't strip when the bolts are the right size and nylon.