Not quite right... Both discs (the performance street or "SS" disc, and the 6-puck) can be used with either the Heavy Duty (SB-013) or Xtreme Duty (SB-013X) pressure plate, corresponding with a 40% and 53% increase in clamping load over stock. The higher the clamping load, the stiffer the clutch pedal. The 6-puck is rated at either 659 or 724 ft-lbs depending on the pressure plate. So the 6-puck with the heavy duty pressure plate will easily outperform the street disc with the xtreme pressure plate. So you have a harsher engagement, but an easier clutch pedal, greater heat dissipation, and less load/wear on the thrust bearings. Seemed like a good trade-off to me. Again, the torque capacities given by ACT are crank, not wheel (because the clutch is before the gearbox and it's associated losses, so it sees more torque.)

Oh, and I'm still on just the VF43 (upgrading to a dom3-size turbo soon hopefully), and I haven't driven it in a while because the cyl 4 ringlands gave out before I went back to school, so the car had to sit in Tampa while I worked out what I was going to have done, who was going to do it, and how I was going to pay for it. It's at Real Street Performance right now being pit back together (motor is built, just waiting on the clutch and upgraded oil pickup). Should have it some time next week.