Interesting about the pedal feel...I'd be concerned about that. The power bleeder that I used actually screws onto the master up top and pressurizes from the top down, so no suction issues trying to pull it down through the lines like the Mity-Vac style things do on the bleeder nipple. Mine so far has no issues at all on the clutch pedal and springs back quickly, hopefully someone else has additional thoughts...just hoping that everything is cool on your clutch assembly and pressure plate which I imagine would give feedback to the slave and then to the pedal. I've heard that it can be easy to install the slave so that the plunger doesn't line up right with the throwout bearing fork. Since the fork kind of floats on the hinge, I could see how that could happen pretty easily, resulting in a funky clutch feel...just a thought.

Also, did you re-use old lines for the master to slave line? Many times, the inside of the rubber hose portion will fail and collapse where you can't see from the outside...lets pressure go in when you stomp on it, but doesn't allow much fluid back with the lighter pressure from the clutch side...image a clogged artery when you see the pics of cholesterol clogging it up, kind of like a check valve in a bad way! I replaced mine with the braided stainless line and metal slave (and metal master too). In fact, the more I think about it, I'd say that this is a strong possibility for your problem if you re-used an old line.

For the shifter, I don't think that yours will work...just go with the JHM, its a beast! I also ordered the new plastic housing from them that it goes into for another $80 or so...mine was junk and not sure if their shifter would fit into what you have now.