About Yamaha 52L

[victor]

I've been trying the yamaha 52L for a few days. The truth is that I was very surprised. It is very comfortable and fits like a shoe. It has a fantastic medium and low register. Very easy to play. But the acute register sounds different.
Do you have the same feeling as me?
Is there a mouthpiece that you have tried that is similar and sounds equally good in all records?

Thank you