I put a couple hours on it on the stand, with the trunk and boards full of ice, then to the nuts for the rest of it's life. I bought this out of the box racer to run hard, paid cash and will have my way with it till it breaks. It will happen before the warrenty is up if it is going to. So far not much has gone wrong, my worst case was the dealers shitty PDI work which cost me 10 hours to a local Catmaster Tech. The other is do not run out of fuel it is a real bitch to get going, 4,000,000 pulls I actually thought I had killed the F7 Sabercat, but the Evil Twin barked to life and has been strong as ever since then.