While I wait for my parking brake spring to arrive in the mail, I've come across this:
I've considered using them before in other projects, but never got around to doing it.
Now seems like the prefect time. Considering the tendency of these vehicles with COM to slip out of park, this will allow you to lock the front brakes and the back brakes will be locked via the conventional handle.
Plus, imagine the burn-outs!!
Can anyone see a down side, or has personal experience with these.