Boy, I battled brake issues for a long time! I tried every pad/ fluid combo but either had no pedal after a short time, or rear lockup. I ended up going back to Hawk blues all round with Ate blue. Jim Foxx and I had to cut a good sized chunk out of the rear pads to help with lockup. All that helped a ton.
I also rebuilt my LSD which helped quite a bit. The car is much more stable under braking. I also concentrated on being smoother with my heel/toeing and smoother getting on the brakes. Not slamming them on but quickly and smoothly squeezing them. I don't run cooling ducts and don't feel the need for them but our tracks out here aren't particularly hard on brakes. Of course I try to just not use them at all
I haven't had brake issues in a while, not counting two bad master cylinders!