CB2 on an Eb?

[Billy M.]

Being the slave to matching rims that I am, I've found that the Dillon Olka CB2e is the perfect compliment to my Miraphone 1291.

However, the Dillon F2 mouthpiece that has the same rim is only an 'ok' match for my Besson Eb. (Read: great for high literature, but not great for balanced playing i.e. high AND low playing)

Has anyone used a Dillon CB2a on their comp Eb tuba with great results?