Screamer Trumpet Mouthpiece, I put this together as an experiment to find the right sizes for me while looking for a mouthpiece. If you find this useful, Please leave a like for it in Thangs. There has been a lot of downloads but hardly any likes. I'm starting to feel like i should take this down. I've made the bore a little smaller so that you can drill it out to the size that you want. just start with a small drill bit and play the mouthpiece, repeat this until you have the feeling that you want from it. I've printed mine with 10 top layers and at 90% in PETG so that I can modify it easily after its printed. sand it and smooth it with a hot air gun to get best results. I turned out to be a good mouthpiece and I can easily blow across the total register, pedals up to above high F with it. I'm not a professional, just a hobbyist trying to find what works for me. it would look better in ABS filament, then smoothed with acetone. but I don't have any ABS filament. Have Fun.