Nah. SB stage 2 drag with the 6 puck shits all over a 6 puck ACT 2600. I've had both. The SB has outlived the ACT, in a faster, more powerful and heavier car with a lot more DD kms, a lot more launches, and just overall a lot more use. And if memory serves me right, the stage 2 drag is cheaper than the ACT equivalent.

I do like ACT - I am running their disk and flywheel in my Evo. But for a DSM I had a hell of a lot better luck with the SB.