Thanks for the kind words.
Will - you raise a valid point about the tuning of this flute and its true ‘Renaissance flute’ status.
To clarify this is really a copy of a Terry McGee copy of the C. Rafi tenor flute found in the Musée des Instruments de Musique, Brussels (no. 1066):
http://carmentis.kmkg-mrah.be/eMuseumPlus?service=ExternalInterface&module=collection&objectId=110606&viewType=detailView
After acquiring this beautiful tenor flute I met with Terry last year in his workshop and he showed me his copy of the A. M. Moonen technical drawings and Roderick Cameron bore trace he bought from the Museum in the late 1970s or early 1980s (approx. when my flute was made - his recollection was hazy unsurprisingly).
His copy of this flute is remarkably exact in its reproduction of the dimensions. I have my own digital copies of these Brussels Rafi drawings/traces but I must admit I copied the McGee flute copy rather than the technical drawings. Since my flute’s length and bore is reduced but the wall thickness is increased, I can safely say it is copied roughly. The toneholes on mine are clearly enlarged to cope with the thick walls:


I know from my research on the Rafi flute that its bore has at least one or two ‘chamber’ sections probably added much later for tuning the second octave (see ‘Geschichte, Bauweise und Spieltechnik der Querflote’(2008) p.293-295) and I can only assume this was not replicated by Terry McGee - but I am speculating here and I don’t have a electronic bore tracer at hand to measure!
Regardless, in terms of tuning and scale the McGee Rafi copy is in D major scale at A=382Hz. So it is not a D Dorian.
My copy in G is in a G major scale (at A=440Hz).
Both my and Tery’s copies exude all the shortcoming of cylindrical bores and yield similar Fnat and F# tuning quirks you describe with the normal and forked fingerings. Cnat/Fnat (in D major/G major) is only acceptable with a fingering OXX XXO. This is the most pronounced common trait between my flute and Terry’s.
So yes, it is ‘Renaissance’ in design and aesthetic but not in its tuning. Especially if, as you indicate and flutemaker/historian Boaz Berney state, a Renaissance flute is:
“tuned in a d-Dorian (d minor with a lower 6th) mode. The temperament in which it is tuned in is closest to d just minor, with a pure fifths d-a and e-b.”
If I had a flute in D Dorian I would’ve copied it in such, but the McGee is in D major. But perhaps if the Brussels no.1066 measurements are followed this is the correct tuning??? I don’t know.
I will try to make a G flute in Medieval/Renaissance Dorian tuning in the future. For now I rather like playing Van Eyck in G major 
Regards,
Vaughan
P.S. in my original post I said my McGee Rafi copy was A=392Hz it is actually A=382Hz)