That sounds like your problem then. Your not getting enough dis-engagement so the flywheel never fully releases from the pressure plate.
Reading back on your first post, you said you adjusted the clutch pedal under the dash. The adjustment you did may be not depressing it far enough now. Hard to tell with seeing it.
I noticed when I replace my clutch, it was a little stiff too, but it worked itself in in a few miles. But I had no problem getting the .40 right from the beginning with just slave cyl. adjustments.
How old is the Master Cyl ?
Also check your Trunion bearing and make sure it's greased and not binding.
E-mail me at cozland@cox.net and I will send you my phone number to call me.
It will be easier.
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