MB clutch

Looking for some input...one of my team mates was complaining about a heavy clutch. It’s an MB clutch was at one point a 6 plate but when at marks last year became a 5 plate ? Looked like the clutch spindle was bent & we swapped with another so the stiff part is fixed but I couldn’t stop the clutch drag! Wound out the adjuster till it was engaged then back a couple of turns still dragging! As far as I’m aware the corks & springs got changed April 18.
Would be much obliged if anyone had an opinion on this
Scott
Would be much obliged if anyone had an opinion on this
Scott