I just had my 360 assembly balanced... all things considered, I do wonder if buying a new crank and rods would have been a better way too go(everything else is new) But i find it a little confusing, the machine shop wants to re-fresh your old parts(that's how they earn a living) and the parts store wants to sell you new parts(that's how they pay the rent) Anyhow I had my stuff balanced :)