Has anyone got experience of the TK alto pieces? The current ones on the site. Having owned a handmade silver Focustone tenor piece for a while and really liking it I'm interested in the alto. I had one of the old Ackerman lost wax Meyer ones years ago that wasn't happening but I'd like to try TK's own piece. I've never played a resin piece that had the same tonal qualities as good rubber but I'm still interested.