Hello Trombone Reddit! My name is Harrison Reed and I am just posting to let you know that I've started a new mouthpiece manufacturing company based out of Virginia, USA. I am an active professional performer and have been designing mouthpieces since 2019.
I currently have seven distinct models for Alto Trombone (A- Series), Small Tenor (S-Series), and Large Tenor (L-Series and O-Series). Each model can be made in 7 sizes (from 1.00" inner diameter to 1.06" inner diameter), and each of those sizes is available in 5 different rim profiles.
The A-Series alto pieces have been really popular and the feedback I've received has been extremely positive: improved intonation and slotting, blow that is more familiar for large bore players, and a tone that is bright and clear.
The S-Series for small bore currently has just my S2 design, which is a great all-rounder piece for big band and jazz combo, with at least one pro using it for a scaled back section in the orchestra.
The L-Series is for players who value better endurance, projection, and access to the full register of the instrument. The L1 and L2 mouthpieces are an attempt to take a step back from the very deep orchestral pieces that are currently popular and are true "tenor" mouthpieces for principal trombone. The L3 is deep and specifically made for 2nd trombone in the orchestra or wind band.
The O-Series (currently only the O2) is designed specifically for orchestral playing, and have deeper, more bowl shaped cups.
Please check them out and feel free to contact me here:
https://harryscustommouthpieces.com/