Thank you! If there are no negligible differences at all and nothing to gain, I'll more than likely be looking into the D - Cup in the next few months. The problem I've been having with the nut getting stuck with wax on my Vrod is really becoming a serious issue and bugging me. I'd really like some more wiggle room for dabbing than the dish provides on the V rod so that 30mm dish looks appealing to me.No no difference in performance or effectiveness at all! Just a different experience and feel but even that’s ever so slight.