actually, considering this logically, i agree this might be easier with an rs turbo item

ive just been looking at pics and noticed the rs turbo definitely only has 2 outlets, so this is 1 piston in the master running the fronts, and 1 piston running the rears, not a 2 pistons running 1 of each

so basically just a t-piece on the bulkhead to split the fronts, plus a t-piece after the bias valve for the rears?

wish id realised this BEFORE i confused the shit out of myself!!!!