Clutch Bleed

I flushed through some fresh Dot 4 on the clutch on my M1100s. Bled at slave then master, no sign of a single air bubble. Bled the old fashioned way, pull lever in, crack open bleed nipple, close bleed nipple, let lever out. When I started it up and engaged 1st gear it went in with quite a clonk, much more than I remember, haven't ridden it for a couple of months. Left it and tried gain this weekend, bled again, no issues, no air bubbles, same clonk engaging gear.

I'd be grateful for any ideas on how I seem to have made the clutch worse just by flushing through new fluid.

Cheers