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Can anyone tell me about these two mouthpieces and with you like better?

-Canadian Brass, Arnold Jacobs tuba mouthpiece
-Canadian Brass, Arnold Jacobs Solo Helleberg

This is easy!

Mr Jacobs used the Jacobs model, he never saw the solo model, it came out years after he passed away - a long story!

And they are sold by Kelly:
http://www.kellymouthpieces.com/cbrass.asp

I tried them for couple of days. I liked the normal model better than the solo. Although they weren't suitable for my horn in my opinion. The golding in them wasn't very well attached. Some of it started to worn out while I had them. The silvering might be better made.

-Lauri