...I concure...the properly modded Busas I rode with had a noticable edge in a number of situations, dispite modest gains in measurable performance....if you nail red line for four gears, most riders on any bike, modded or not, tend to be dots in your mirror....but wicking it up around town and "out on the highway" shows usfull gains in both the mid and "upper mid" range with crisper throttle responce and a qiucker reving engine....in direct compareson to my "stocker" and KawAbuser's well set up bike the dfference in mid range pick up was notable, and KawAbuser is 90 to 100 pounds bigger than I...