Welcome to the board! I have owned both so I am dieing to hear your thoughts on you switch.
why'd you switch from a busa?
Well, bunch of reasons I guess, but mainly as much as I love both of them I could only keep one of the two( had em both at the same time), and had to sell the other. The R1 is more fun for ME than the busa. It stops and handles better, still goes low 10's in the quater and is an absolute handfull to ride. Even though my busa was a faster machine, I love the twitchy characteristics of the R1. It FEELS crazy when you are on the gas, on the back tire, and then jamming the brakes into the next turn. I use it for track days, some street riding, drag racing, and maybe even a club race or two. At this point in my riding career the R1 fits me better. I hated to give up the power and comforts of the busa, not to mention that low pitched rumble the busa exhaust makes at a certain rpm.
Ultimate goal is to again have 2 bikes
R1 for Trackdays
Busa for street and drags