I am about to purchase my second zx-12r (2000). I love the performance and the way the bike handles. I have had a busa and it was okay but it did not impress me at the track. Both of my bikes were stock with the exception of the airshifter on the busa and the busa was only a few tenths quicker than my 12. Anybody can launch a busa but it takes a skillful rider to launch a 12, keep it on the ground, and get a good 1/4 mile time.