REALLY..............?????
do tell why.......... (dont want to spend coin if I dont need to..........)
I find that with towing a caravan its like driving a prime mover/semi trailer, you want the trailer brakes to engage first before the towing car does like a semi.
With the boost function on the P2/P3 it alows the caravan brakes to engage first and the tow pro does not allow this function, hence I returned mine because of the braking delay, which in turn meant increased stopping distance too.
The tow pro is suppose to calibrate this but I found the delay was to long and could not bring on the brakes quick enough compared to the P3/P2 so I retuned it and stuck with the P2.