An interesting take on the psychology of a metal mouthpiece; thanks very much. Another issue is that I am not sure whether 13 is too young to be investing in a serious mouthpiece - I presume an adolescent can outgrow a mouthpiece like anything else?
Not really. I bought an Otto Link when I was 12, I played it until 19. Now it is back after a reface and it is a wonderful piece.
My recommendation of that particular design is due to its flexibility. On the alto it
can happen that someone plays a Meyer 5 for his/her whole life (Phil Woods?). The need for a change is usually due to an evolution in taste.
In the £100-£200 there are few mouhpieces worth trying. Above them I think they are overpriced (unless there is a specific wanted sound/fell), below that there
could be something that fits the bill.
I also have some mouthpieces in the yardsale, but I recommend Pillinger directly because:
1- He is an excellent craftsman
2- He is a musician and a great ear to spot the right piece for you.
3- He has a great variety of models and facings available
4- He is fairly local
Some shops have very helpful and knowledgeable staff, but I still recommend doing the purchase with a teacher, if possible.
I sometimes take few mouthpieces on approval at Howarth's for my students to try, but usually basic Yamaha/Esprit.
For a very talented student of mine I also had two (guess the maker) professional pieces to try, but in his case I was happy to take the responsibility (and I know his parents well enough).