I have a DX32, and am a little scared to grind it. I have given it a mellow grind which helps alot with breaking, by mellow I mean about 65% of the rim is still black(the finish). Every rim switch it costs me $120 CAD, I dont want to do that more than every season at most. When I say Andrews grinding vid I was like "HOLY SWEET MOTHER OF JESUS! how is there any metal left at all!?" So now I'm actually really scetchy about it. So my question is, how many times (and depth) can you grind a rim like mine without comprimising its strength? Dont know if it matters, but I run S-Flys on vees now and plan to run Maggie Bloxx in the future. Thanks Steffen'