Any views on the possible merits/problems/ etc on the Copeland six key on The flute store site, and the Firth Hall and pond on Arthur Haswell’s site>
I know that FHPs are reputed to have good tuning, and that Copelands are sought after, so I’m just afetr some advice, if anyone feels inclined to offer it.
I’ll put in a 
for the Copeland flutes. I’ve played one for a long time. Mine does have six fewer keys than the one on Doc’s site but it is the same bore, etc.. Mine has a more detail in the rings and it has tenon ferrules that are not on the six-keyed example. A lot of other flutes have come and gone at my house over the years but the Copeland is a keeper for me. The fact that I’m a Philly boy may influence my preference too. But it just plain suits me, good workmanship, good sound. The body is a little slimmer than many other flutes. The bore creates enough compression that it pushes back very quickly. I like it. But as is the case with these things it may not be everybody’s preferred cup of tea.
Feadoggie
Haven’t played the keyed version but the keyless, and heard these played as well. Solidly good, IMO.
The Baubet flute on Doc’s site looks an extraordinary value.