Just shave them off and pull out a little. 
As I read it, the OP has reasonably good ears and felt C was flat compared with B, A and G (which, I guess, where fine relative to each other). Is that right?You're flat. Push in. That's why the mouthpiece slides on the cork. All open is C#. Middle finger left hand down is C. You're flat. Push in.
As I read it, the OP has reasonably good ears and felt C was flat compared with B, A and G (which, I guess, where fine relative to each other). Is that right?
... And know he's playing Bb, A, G, F concert?
