Jim wrote:
> I've changed every possible part I can imagine.

Nope! I see you haven't mentioned having done anything with the pedal
and its linkage. Your stiff pedal could be caused by something sticking
in the pedal assembly itself. The shifting difficulty could also be
attributed to a need for adjustment in the pedal.

Let's see: tt's probably a blockage in the hydraulics, since you
changed both cylinders and the line between them, right? It's probably
not a problem with the clutch release mechanism including the pressure
plate and disk, since all were serviced or replaced. What does that
leave?