New Mouthpiece

I got my refund check yesterday. 155 dollars. Yes! So I decided to go mouthpiece shopping. Yes, I do already have a nice gold-plated Helleburg Mouthpiece. The problem is that it has a huge cup. This would be really great on a contrabass tuba, but I play on an F. So I need a much smaller mouthpiece for it in order to play in tune. I ordered a Bach 30E mouthpiece with a gold-plated rim and cup. Joe will drill out the shank for me and it will be great. He let me play on his mouthpiece that he uses for his F and it sounded great. I also bought more valve oil and the Trumpet Arban's book. I hate you Arban! Anyways, with the purchasing of groceries today, most of my refund check is now gone. But I will have my mouthpiece within a week, which excites me.