I've had good success with CG pads on my HF polisher. Jared, I'd also look at the Astro backing plate for it, the backing plate that comes with the HF polisher sucks.
Here's the backing plate:
I ALMOST had a 12 WRX when I got this car, but the dealer wasn't willing to work on the trade in on my truck. Fgts. Next car will for sure be Scoobie. If my FWD car does this well with some studdless winter tires, I'm sure a WRX would be :hng:.