First post, first MMM, first Savage conversion... Questions!

[OptimusV6]

Well, after using another set of lipos... I GOT WHEELIES!! Also, I verified my tranny and diffs. and they have the same teeth count that the Flux has (so no gearing issues).

Of course, there was something else... the rear right tire started coming off, and after inspecting the rim I noted that the hex had damaged the rim (made it round).... I don't know if I made this yesterday or if the rim was already damaged (I bought the nitro roller used). I now need at least one new rim. Once again, is this normal? Should I backup the slipper? Is it a good idea to get the hpi hub conversion part 87229 (assuming that rims that use the bigger wheel nut are stronger)?

Sorry for the noob questions and thanks in advance.

Joe