I had a Potenza on a Valkyrie Std and an Interstate and I put a Khumo on GW I had and a GW I still have. The purpose was to get better braking power when it is wet (in Houston that used to be frequently) and to avoid the 10K tire change routine. I do NOT intend to go DS on the F6B until I see it on the roads dry, wet, and with loose dirt. At least that is the plan. Then again, if I ever park next to another F6B and he is running a fatty; well, all bets are pretty much off.