Will, it is not necessary to take lessons to figure a lot of stuff out. I am well aware of the difference between good lessons, marginal and no lessons. In this case, the thread owner quoted the reason for not using a big mouthpiece as it being too early into the building process. I consider this to be sound advice. The 16C4 is much bigger and the teacher can judge if the player is practicing enough. A good indication that this is NOT the case is the claim that the high range is "thousands of times" easier. This is NEVER the case when a player is in reasonable shape. It is also not the case when a player is in bad shape. So to get back to the truth: if the poster describes the impossible, how good can the advice be to fix that? If the goal is just to reinforce the myth, fine - just not with me. If the goal is to do the right thing, I will stick with my internet guesstimate. I have taught enough students in the last 35 years to have the odds be on my side. Very often the best lesson in life is the indication that reception is better than transmission. It is really tough to try and explain something to a person that already has their mind made up especially someone with little or no experience to back up their premise. The biggest help is to face the truth. That truth is that the 3c is a bit smaller and provides better results when not practicing enough. With proper chop development, we only switch mouthpieces to change our tone. The range stays exactly the same!