Primarily going to set it up for 2s.
I have alot of experiance with the Castle 2650 motor and it has worked very well.
Is there anyone thats used the 2800 (from SCTE) in thier Slash 4x4 for comparison?, as these motors are cheap in comparison
And for the record 2200 is too slow on 2s and does not perform as well, tried it. 4s its killer