Are you using a diaphragm or the mouth piece that comes with it? I assume a diaphragm and if I am correct which one? The high pitch requires the most tongue pressure so if you are new to calling you might try a a softer reed (i.e. the maverick and gray amp require more tongue pressure if using these you might try the green amp or pitch black #1 or #2). Hope this helps!
Ok...actually pretty easy to do... this may help ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-V-2BNbo5bmc.html ... try playing with how much of the reed you cover and add more lip pressure for the higher note!@@LucasMontano-oo9wv
The aluminum tube is the top of the line, no doubt. Clear, crisp sound. However, this new plastic tube is no joke. It is the best plastic tube to hit the market yet! Both will get the job done!