Well, The LRP Sphere gets pretty hot too. It's a reverse world with BL motors : the motor remains cool, and the ESC gets HOT instead of a hot motor and a cool ESC with brushed technologie.
My experience so far with the LRP Sphere + Vector (3-star) is that it's very linear and smooth with lots of power and speed. This sunday, there was also a guy using the Novak 5.5 system. He complained all the time about stuttering and a turbo lag effect. I'm not making a judgment here, just stating my (limited) experiences with BL systems on the track.
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