Clutch slave cylinder, internal spring?

[wrogers55]

I know this subject has been absolutely beat to death...but.

I'm finishing up a full clutch replacement and down to the slave cylinder issue.

I have a "push" 7/8 slave with a 7/8 master. The slave has an internal return spring that pushes the plunger OUT, with something like 6 to 8 pounds pressure. That means that any clearance between the release bearing and the pressure plate fingers is "taken up" by the return spring and the bearing rides on the fingers full time. I know the Ford Mustang guys say that's no problem and the bearing is made to run on the fingers full time and the old school guys, like me, don't like the idea of the bearing running when it's not needed.

What works here? A stronger return spring to overcome the internal spring in the slave? Or, take the return spring out of the slave and use a external return spring that keep the fork arm off of the bearing fingers when disengaged? Or, leave it alone and let it run on pressure plate fingers?

By the way a factory race team Ford/Cosworth engineer told me that there is more stress placed on the bearing when it NOT in full contact with the PP fingers than when it has some clearance. Some version of the bearing going from full stop to high rpm spin up at every shift with a synchronized trans being harder on the bearing than just letting it run full time. That's not my argument, nor have I adopted it, just passing it along.

This should be easier. Thanks for the help.