Keyed Delrin flutes
I am thinking of moving from keyless to keyed at some point. For a number of reasons the choice has to be Delrin. I see that some flutemakers (Dave Copley, Damien Thompson and Francois Baubet) can make Delrin flutes with up to 6 keys. Do you know any other option? Do you know of any who can make a fully keyed (8 keys) Delrin flute? In any case, any recommendations on the best keyed Delrin flutes?
Also, what kind of maintenance would be required for keyed Delrin flutes?