Flugelhorn high notes are not dependent on mouthpiece choice. 

Been playing for two years and still having issues understanding the tongue concept. Aperture control yes but every time I try to manipulate my tongue, I don't hear a change in speed of air when I ascend. Aperture control usually does it. Lots of teachers say to think as "eeeee" you day "shhhh" 😥❓️

I spent many years in brass bands. Most of it was on a Wick 2 mouthpiece. I don't know how I managed it. In hindsight I could have made my life a lot easier!

I'm a principal cornet player in the lower sections and it has been surprisingly hard to choose a mouthpiece. I ultimately gave up and went back to where I started with the DW 4B. I actually ordered a modern 4B and 4BFL the other day. I have a 40/50 year old 4B but I hear they have changed over time. I'm looking forward to trying the modern ones and comparing them to the old one. I may look into the trumpet 4B as as well.

@@musicalcubes The original 2 was based on a 1960s Bach 1 1/2C rim. Then it got progressively flatter. When they set up their new factory it went back to the original shape but the backbore is more cylindrical to sharpen up the upper register.

That's interesting to know. I have the Heritage 2, which is a nice mouthpiece. It seems to pair well with the Maestro. It's on the big side for me, but I love how full and rich it sounds. I don't think I could get through a brass band rehearsal on it though.

It reads in concert pitch so my C reads as Bb on the tuner. Every note reads two semitones down.

@@GordonHudson Thank you. Isn't it a bit of a pain to constantly have to transpose in your mind what note you're playing? OTOH you may be such a longtime experienced player that it's second nature to you.

I bought an ENO ET3000W clip-on tuner which fortunately reads the correct non-concert-pitch note. Especially as a beginning trumpet player I find that way more convenient.

@@kn-qz7by I play in orchestra's so I have to transpose all the time. Nothing is written in Bb.

@@kn-qz7by I would find it easier too.

There are different ways of doing it. I saw a video where someone was explaining the same method I use. I could do one later in the week maybe. I do it this way because I naturally anchor tongue. That means the tip of my tongue is behind my bottom front teeth. So rather than thinking eeee to increase speed I am thinking tthhhh or ssshhhh. I also sometimes push my tongue forward, while still anchored. This is a bit like the "superchops" method. Hope that helps. I came to this by experimentation. The big advantage is a top C is never an issue.