Many thanks Alex,

Interesting points, so basically brushed are more forgiving when put into stall mode?
I've had a look at your set up on the web, seems quite a nice system there. Do you need a separate power source for the receiver or does the Rebrick have the power supply?
Once again being old school I am not up to speed with flashing esc's, is this a kind of rewriting the program within or changing parameters? In my days when rc racing I would use the transmitter and using a button on the esc watching flashing lights...
I presume 6s, 5s and 4s Lipo use on say your 5060 motor is not linear as far as Amps drawn, not sure how to find out that information. My FW doesn't have the space for a 6s, a 5s will be tight.
Also I am trying to understand power to weight ratio, from my days of racing slipping wheel is loss of power and in some cases reduces acceleration, hence the good old clutch slip to keep max torque to min slippage. Wonder if we could use centrifugal clutches...? lol.
Finally, for both brushed and brushless, do you know how much over voltage is safe e.g. 18v motor running on 22.2v (6s)?