[DanEC]

True - and bellhousing runout usually generates issues such as kicking out of gear as the motor is reved up and eventually component wear and failure over time - not so sure about shifting issues. I would try to cut down on pedal free play to ensure you are getting full disc disengagement in neutral and on shifts. And as someone said - make sure the hydraulics are free of air.

I’m guessing you are convinced it’s not a shifter alignment issue. Never tried to check alignment of a bell housing with the clutch in. But if you have a sufficient sized magnetic base that will anchor solidly to the clutch fingers then you should be able to do so.