Having actually run one in my TC, and seen them going round in a 12th, they are deffiently right up (if not faster) there with the afforementioned... If you get the castle link software as well, you have a lot of tuneability in terms of how the timing kicks in.
Big wide band for a smooth build, or keep it short for a proper thump... and you can also tune as to where exactly in the rev range it occurs, to suit motors and tracks...
Also need to mention that Castle are bring out updates to the software, so potential to get faster, and for free
(we like free
)
Basically, for the money, cannot be beaten.
