I'm 63" its great on my gen1, dont forget the longer you go the more traction problems you could have, 62-64" very popular and works great
No way man, I"m at 9" over and launching at 9000rpm on at two step with the throttle pinned. dead hooking, 148. 60s
I guess its whatever ya like , I just went 1.43 60' this week @63" lauching at 3500 so it works too
10"-12"
wee