unless its you rear biasing valve then you would have just wasted all the money to get teh same result
are the leacking ??
do the have good pads ??
do they lock up evenly when you apllie the hand brake ??
no kinks or dings in the metal line, obviously the rubber line is okay 'cos they would have failed it if perished.
looks to me like a valve issue if the handbrake pulls up evenly.
cheers for help. like si said pads are new, no leaks, no abs, handbrake is pulling up evenly on the rollers. imbalance is almost 50% left rear reads about 150 right is around 100 on the foot brake. may have to shoot to pick a part and get a balance v/v. car only has till to the 9th to get re-checked so need to get it sorted