elkiwi: I just bot an new-in-the-box Advance 40 (which is discontinued) from a hobby shop I traced down in California. I plan to start assembly on it in late February, probably powering it with a OS .46 FX. Do you have any suggestions regarding its construction or modifications you might recommend? Although I've assembled a number of ARFs, each one seems to benefit by some input from other owners. I'd really appreciate your guidance. bill beardsley