i've had a few srads and the fi is so much better, had a 1k then back to a 750 but might be tempted by a 1k again soon (not the new one though - dont like it) prob a 05 model
i've got a power commander and a remap, k&n, scorpion end can and had a few roll ons with 1k's and there next to no difference, just like the fact the newer gixxers are smaller (short legs )
cant fault the k2 k3 750 though