HELP ! Stuck Clutch Disc or HTOB Air Trapped??

[kitcarbp]

OK Guys, NEW SET -UP. I have set-up my McLeod HTOB with about 0.160 gap from PP fingers to bearing face when piston is fully seated (not extended) (McLeod quotes it needs to be .100-0.250) to allow for clutch disc face wear over time. Clutch and pressure plate was installed over 4 years ago on this new build without ever being tested and I wonder if disc is stuck to flywheel????. What I know: I can select a gear on the TKO 600 and start the engine and confirms clutch disc is engaged because wheels turn. I CANNOT depress the clutch pedal while engine is running and select a gear or grinding will result. I have noticed if I place a small amount of pressure on shifter handle into any gear (with or without depressing the clutch) it begins to rotate the drive shaft and rear wheels when up on stands. How do I tell the difference between a stuck clutch disc or a HTOB that needs to be bled some more ? (I can see the HTOB travel about 1/2") but Im not sure if thats enough. What say the experienced ones out there ?
1) Do I run the rear wheel speed up to 70 mph in 4th on jack stands and while clutch is depressed, stab the brakes hard to try to free the disc ?

2) I plan to try to bleed one more time but my pedal is firm and feels good and bearing is moving into pressure plate fingers Im just not sure if its enough.