ORIGINAL: LaTuFu
If you go brushless, do it right and put a sensored setup in it.
Otherwise, you're going to kill what makes this truck great.
The best part of this truck is it's low speed abilities.
Put a BL setup in it and you'll have to be very careful about locking the diffs.
The Summit is one of the few trucks left that really benefits from keeping a brushed setup in it.
Plus, you no longer have a waterproof truck if you go brushless. Something else to consider, depending on how you use it.
It's a basher first and foremost for me. I have some lighter lower profile tires going on. I pretty much plan to leave it in the high speed with unlocked diffs. Our bashing is mainly in dry areas. It doesn't snow or rain much here in SoCal. I am at least going sensored though...
In other words, it is pretty much an e-revo to me with a few tricks.