Sensored is more suitable for racing applications where you want a very precise feel at low RPM. Like exiting a slippery corner.
Sensorless is better for high power requirements. I use the Mamba Monster with the 'Torque Control' setting active & no 'Punch Control'. It seems to be much smoother to drive. This ESC has given me hours of 'driving pleasure' with no fuss at all. I update the software regularly & it never misses a beat. MM's are not too badly priced from ebay either.
If you want a motor that they don't currently have in stock, just email them & they should be able to give you an indication of a restocking date.
I bought mine from ebay, along with the water cooling jacket.
BTW, I don't think the boat is quick yet. I'm upgrading my ESC to a 240HV & running it on 8S.
