eHi All, I'd like to hear your experienece with leadpipes. On a Large bore trumpet , do you use a smaller pipe to balance the trumpet or do you use a large one and try to find resistance somewhere else , say backbore , throat , ? Oh by the way, Resistance is a good thing in trumpet playing and is something that is necessary, but it has to find it's equolibrium with the other variables. It's finding the balance and just the right amount that is the hard part. It's like Choresteral - There's Good resistance and Bad Resistance, but without resistance , you'd be putting your mouthpiece into a straight piece of brass. Back to the question: On a ML or M bore trumpet , do you use a larger pipe to let air flow and mellow out the sound or do you use a tighter pipe so the tumpet is more balanced. When I'm playing my best, it's like I'm just " humming " into the horn and then I know , all the resistance ( tongue , lips , jaw , rim diameter , cup, throat , backbore , gap , leadpipe , tuning crook ( standard or reversed )bell flair, etc ) is all balanced and I'm high over the crowd , walking my tightrope with ease. We've all experiance that felling. The days you can't miss. Here's an example: I have a early Elkhart Bach, tuneble bell C trumpet with a 238 ( vinabonna ) G bell . Do I put on a #6 pipe so my articulation and " PP " playing is easier , the notes slot easier and endurance is improved or do I put on a 25H or even a 7 so the whole trumpet is large with a bigger tone, more robust, wider slots , more fluid playing but with the inherent problems that will occur with having the lips and body do most of the work. Please give me you opinions and experiences. Trivia: What do the Martin Committee , Schilke B6 , Yamaha Z trumpet , Reeves V-Raptor , Marcienk. Coppola Model , and the Callet " Jazz trumpet ( plus couple of others ) all have in common?