Thanks Eoin!

The nylon studs also sound like a good idea, may be worth doing something similar to the sides as well (or possibly some form of roll hoop).
In practice, the wheel guards seem to negate the need for this on the side but will check after the rebuild.

Given the height of Honey Badger, it may be a good idea to move the link up to the top of the robot? Should greatly reduce the odds of it getting knocked out at least.
I can't get the link moved in this iteration of the build but the wiring does need to be overhauled. Will be for 4.2. For this, I might just add the studding around the bottom of the body around the link to make it harder for other robots to reach.

Fitted the motor clamps last night from some scrap polycarbonate I had and did the power on test. ESCs make a noise, weapon ESC lights up... receiver doesn't. Now, I know the new ESCs are OPTOs so they don't power the receiver but the weapon ESC should as I think that has a inbuilt BEC. I had to resolder the positive wire on that so I wonder if it is a bad connection there. I tried two different, known working receivers to no avail.

I've got a couple of spare ESCs which should work - will see what is going on.