I have done that, regardless of the truck running or not the slave provides pressure against the pressure plate when the clutch is pushed in. It looks exactly the same, granted I have no way of measuring how much the the pressure plate is exactly being depressed.

We can trying bleeding it again. It just seems insane for there to be air in the system. When it was bench bled and then once reinstall we ran at least 3-4 reservoirs of fluid through it. Just seems nuts there could possibly be air still in it.