Need to clear something up.....I was "never" inferring, suggesting, etc that I felt you were "cheating". No traps here! I don't consider any mpc or horn "cheating". To me, that would be the same as telling someone they were cheating by using a flugelhorn. Know what I mean? Don't worry...we are on the same page there.
My question about your range vs mpc size/depth all that was just curiosity AND to prove that what you're doing can be done because you can really play that stuff...no matter what. (I guess you're right...that "someone" might read these posts...listen to your stuff...and think it's only because you use a certain piece of equipment). You did 2 things by answering... that you can probably play the gammut of range on a tpt mpc or a garden hose! ha. AND that the embouchure, compression, etc you have is valid. You've done things over the years to increase your efficiency (which we all want to do)...which "can" as a by-product...provide us with extensions of our abilities, ie: range, tone..whatever.
Now, about this notion of placing the tongue thru the teeth business on TCE...?

(is that what it looks like??? hahaha.) Actually, as I said above, I've experimented with ...at the very least... keeping the tongue forward and anchored a bit more. That has, so far, proven more efficient.).
I guess I'll have to dive in if I want to find out more.... it hasn't gotten in my way yet...so... Plus, I've been playing for so long, I can get the job done in the midst of all of it....kind of like what you are doing.