Originally Posted by Ryan @ RJM

Final note which I've not seen discussed or noted is that while everyone is fussing with this brass union block no-one has stopped to question the orifice size at the outlet of the factory master cylinder. The factory master cylinders outlet is only 2mm and exactly the same size as the brass block. So without eliminating the restriction at the MC you could add a sewer pipe connecting the MC to the slave but it won't get you any faster clutch release with this 2nd restrictor still in play.

Hope that adds to the discussion, helps save a few people destroying the brass block and clears up the miss-information early on in this thread.

Best Regards
Ryan@RJM