Long mains for mod are welcome. Properly picked and sized motors, low motor timing, correct boost and turbo, equals low heat. High efficiency.

Long mains for overloaded BS slow stock motors on blinky are terrible. Geared to the moon with too much timing. Motors simply get too hot. Any way you cut it, 13.5 is the bare minimum to move an ST or Wheeler. I get why we need slow. But Long mains or practice sessions are not for them.