I have heard many good and bad things about Buell. Especially the Buell Blast. My concerns are about the XB9R and XB12R. From what I gather the bikes handle great but the motor lacks adequate power. People have said that the bike needs tuning but do not say what exactly on the bike needs to be tuned. Can anyone tell me specifically what the Lightning and Firebolt bikes lack? Also what's the deal with the belt drive I hear so many complain about?