Ralph Sweet flutes for beginners?

Any suggestions for tweaking the Sweet embochoure? I’ve an apple D flute I bought from Shark in the Morning something like 5 years ago, and it’s painful to play - way too much wind. I’ve never gotten anywhere with the flute as a result, and have played much easier flutes friends have. Perhaps filling the embochure up with a plug of wood and revoicing? Sounds like good non-destructive fun.
Or I could ask the man himself about it, as some have suggested. And…I’m waiting on an old Ebay 5 key flute, too. Stamped “D.” Maybe a German job? Picked it up for fairly cheap, has a quite extensive head repair, too - metal lined, pins to hold the wood on. Maybe it’ll have to be replaced. I figured if I wanted an oldie it’d be good to avoid all those low C keys, etc. Looks like smallish holes, too. I don’t want one of those Pratten’s Perfected session monsters. Anybody tinker with flutes like this?

My impression is that sweet flutes have improved.
My sampling has come in the last two years,
and all were good. Yes the Casey Burns flute
looks like a tempting option, doesn’t it?