Sounds pretty good overall. I too thought I heard some detonation, however I am still dialing mine, so if I get on it hard, I get some too, that's why I haven't been getting on it hard till I figure it out. The whole idea of putting it away for storage seems to really suck for us in the nicer weather states. No wonder some go crazy. It's hard for me to imagine having to put my car away X number of months a year.