Yes, with the hands on with this little 66cc creation I have to agree with the TOTAL IMPORTANCE of where & when the powerband kicks in !!!! I've found that if you don't have harmony in a 2/stroke, then your stuck! Uno, from what I've experienced the powerband can only be achieved a short period of time. You can only create a certain amount of high compression that can be functionally used on HT. Physical size of stroke is to short, and can only be pushed so far. Bottom line, the bike then either flat lines or looses do to RPM's maxing out despite if you've got 2HP or 10HP...............Right??!!!