[Overdriven]

The amount of braking is still going to be the same as without abs. If anything the (average) load will be decreased during braking due to the modulation.

I believe my 3pmx has it too, but I've never messed with it. I just adjust the MMM until it will barely lock the tires and/or braking is easily controlable on the highest traction surface the vehicle will normally be run on. I usually end up with 70-80%.

Does the radio manual make any mention of how to set the esc before trying abs. The amount of adjustment may be somewhat limited. I would think you'd want maximum braking from the esc though. Personally I'd try it with max braking, medium abs. Then maybe lower the esc to 90 and make more abs adjustments. At that point you will probably start getting a feel for it and can work from there.