To all the shudderers lol, when I had my BA I had pretty severe shuddering and I changed nearly every braking component, rotors, pads, fluids flushed and replaced, abs module etc etc. A mechanic mate of mine had a few customers experiencing the same problem and all he did which seemed to fix the problem was to back off the rod between the booster and the master cylinder a few turns. Might be worth a try as it costs you nothing and might save you a few pennys for your next mods , goodluck.