I've been thinking about it for some time now and finally decided to do it. I just placed my order with Service Honda for a KX500AF. I had a choice between the "09" 250 chassis which are not yet in stock or going with the "08" 450 chassis. I chose the 450 frame which is slightly beefier and comes with the bigger fork tubes. Should be here before Thanksgiving. I'll post pics and do a ride comparison write-up when compared to my two Zooks. "05" RMZ450 and a "07" RM250. Wife thinks I've gone insane but is supportive.