Good to hear, I've had the same situation arise on the hydraulic throwout bearings, might have to go back to a fork and slave cylinder. I did resolve the issue with some machine work and a larger O Ring. I really like the looks of the aluminum one you made, probably a lot more practical and trouble free for street use then the hydraulic. Hope you don't mind if I steal your idea... My only concern was if the cylinder's would create enough pressure to make everything work correctly, good to learn it all works ok.... Thanks.