Some answers came and then the thread was high jacked by someone changing the subject to retailers. This part of the thread has plenty of scope and a long way to run yet.
I don't think there's anything particularly challenging about discussing Chinese valve amplifiers unless you're planning some cunning twist, perhaps returning it to the subject of slagging retailers again?

No, we need a whole new remix of the record, Richard.

What's your view, for example, on young oriental women and the unorthodox 'launching' of ping-pong balls?

Marco.