Mike, I think both the M3 and 2CT are great tires. However, I personally find the M3 to be a bit more confidence inspiring in the twisties due to it's harder carcass. The 2CT has a softer carcass resulting in a cushier ride than the M3. However, for me, the softer 2CT carcass also tranlated into a spongier feel going into the twisties. I think the M3s are more suited to the weight of the busa, IMO.