Dont know how or why anyone would over look the firmware on a PCV and the update was to fix over fueling on some models, it was in LARGE print on the update sent to all dealers.. :S But your fixed and done so all good. Those that are running the old firmware with no problems do NOT update it unless you are able to reset the TPS and check your AFR... Unless you get the go ahead from DynoJet as I have been stuffed before with firmware updates on a mapped and well running bike! If its not broke dont try and fix it....lol