I used to run a pro 3 on slippy floor.
My setup was roughly pink spings on the front and something a bit stiffer like a grey or navy blue on the back, with about 40wt oil. 3 degrees front caster blocks with 2 or 3mm spacing under the link. Rear link in the upper hole on the rear hub. Narrow Yellow pins. That was roughly it. A good thing to do is set the car with lots of suspension droop, this creates more grip. Some people like the Pro 3 with the standard soft silver springs, but I found they made the car a bit too vague.