In between spates of rain and some overdue gardening/weeding, I managed to pressure bleed the brakes on the Touring (& the neighbour's e30), install an OBC and an e39 shifter handle, clean the windows and check the fluids. To my surprise she drives way better. My local indie forgot to put Super Dot 4 in when I got him to put V8 calipers, new rotors and Akebonos on the old girl a month back. The new brakes felt like spongey poo- they were worried and told me about it before I took it back, so I finally shelled out for a pressure bleeder and have been waiting for it to come and me to get the time. Gave the reservoir a positive 3.5 atmospheres of pressure. The fluid spat out nice and strong.
No bubbles came out though and I got a constant flow, about 200mL per wheel. The brakes now feel really nice and smooth stopping at the lights. Before the fronts were barely biting.
How the hell can this be? All I did was change the fluid... before it was so bad I was starting to think the master cyl was on the way out!