with my set up its the opposite of you
i have too many brakes on the rear
( oem master cylinder,300X22 tarrox disc,996.352.421 and 996.352.422 for front calipers with Pagid RS14,oem disc and pad and a limiter for the rear )
maybe your ABS bloc cause that distribution issue ( even if its electrically deactivated )
made this for my brake line
put a limiter after
