They are great! The peddle feels pretty much the same as the FMJ discs in terms of effort. I just have inexpensive parts store pads in them right now and I can lock the tires up once they are warmed up. I may buy some better pads once these wear out. The dust they make is ridiculous.
I put the adjustable proportioning valve on the rear brakes thinking I needed it. Turns out I have it wide open so there’s no need for a prop valve.
I also used the 2lb residual pressure check valves. I’d use those again. It does make the car slightly harder to push, but I don’t plan on pushing it very often!
Overall, I feel like the car is setup really well right now. I just need to get a wider tire on the front to help reduce some understeer so I can be more aggressive approaching turns on the autocross. For the street, it’s great and really enjoyable to drive.