I have been riding a 2006 GSXR 750 for the past few months and also have a Harley touring bike. I'm riding the 750 about 80% of the time and love it, but find I can only ride it for an hour before my neck, hands, rear end etc. start to give way. For those of you that have ridden "race replicas", how much more comfortable is the Busa. If I get enough positive answers, I'm trading up! In fact if the Busa is as comfortable as the sales guy says it is, I may get rid of the HD. Thanks for your advice.