I've only put a little over 1k miles on my new-to-me '06 (it has a little over 12k on it in total) and the transmission clunks going up through the gears (of course, once at speed, upshifting and downshifting is very smooth. Some of this, Im sure, is my inability to consistently find the right combination/timing of throttle and clutch while initially going up through the gears. This is very frustrating as I've been riding all types of bikes for over thirty years and never experienced anything like this before. I believe a large part of the issue is the abruptness of the throttle. I thought I'd just get used to it and adapt, but after 1k miles, I still haven't found the key. Next, I'm going to try the G2 throttle mod and see if that helps. I would appreciate any other ideas/suggestions anyone might have.