I've been getting some amazing info on this site so thanks for all the info so far!
Onto my question.
I know I can brake a dc motor by shorting the terminals but I also know how much current that can generate. I need to be able to disconnect my speed controller before shorting the terminals as i'll probably cause a failure or worse, a fire!
I've attached 2 drawings...one of my current setup and one with a DPDT switch that will disconnect the motor and at the same time, short the terminals. (I think I've got the wiring right?!) My concern is that the current generated by the braking will still damage my SPDT relays that are used for polarity switching. Is there another way around this?