Another clutch not completely disengaging thread

Well i have bled bled bled! Bled the MC, then bled the HYD bearing, theres no air bubbles, the bearing is only moving about 3/8", this Street Max is able to move a maximum of 3/4", i'm at a loss to know why it wont move more than this. Powertrain Technology recommend a 3/4 bore MC (which i have) and its stroke is 1.25", its as if it needs a longer stroke MC, but i haven't been able to find one and am not sure they even exist? Would a larger bore MC help do you think? Advice always appreciated as i have run out of ideas, thanks.

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