I run the Mamba Max and the 4600 in my T4 and love it. There are a few more at my track.
There are a lot of people that feel sensorless is not good for racing, but the systems have come a long way and many people have not tried the new systems with the new software. they are very smooth and very powerful.
I am in no way wanting to start a sensored -VS- sensorless debate.
they are both very good.
ARCS Hobbies / Paint Monster Airbrushing / BFast / Tonys Screws