I am not sure what machines they are using, however it gives detailed information and allows for clutch adjustment via the keypad.
I suspected the TCU might be a culprit, so I had my friend with another 05 QP switch with his new TCU and the same problem existed. It does exactly as you described - attempts to go to reverse, makes a few soft noises or bumps, then switches to N. This problem started with the rebuilt clutch.
I ordered the new clutch / flywheel and the shop has agreed to credit me the labor for the previous work.
***IMPORTANT***
Here is the reason I suspect the clutch:
1. The problem began when the rebuilt clutch assembly was installed.
2. Reverse gear is aligned in a way to "allow" more clutch slippage than other gears. When your clutch wears, reverse will begin to slip first (according to other F1 owners I have spoken to).
3. With the above, I would think that should the clutch not meet OEM calibration by even a fraction, then it will affect R before the forward gears.
Again, this problem completely vanishes when the car is cold. It is only when the car or the clutch warms up.