Clutch sticking when releasing pedal to engage gear

[herald1360]

I had a sticky clutch problem a few years ago. It was ok until it was warmed up then impossible to let the clutch out smoothly. It was cured by having the gear box input shaft (where the release bearing carrier slides on) polished at a machine shop. I tried about 3 different clutches but made no difference. I got the info from USA TR Buckeye triumphs website.
Sorry you may have to take the gearbox out again!!
Good luck!!
Paul