Thanks! Didn't know Jetro Tull, always appreciate input.
Bubby, sorry, videos are past my tech Level quite a bit.
Gutshot: It sounds nice, warm and loud, bu it's quite bitchy to play. But then, i'm not much of a musician on flutes, either.
I suspect that the distance of the end plug to the sound hole is a bit too long, about 2.25 times the diameter. The tuning of the holes is really spot on, but the upper register is a little bit flat, as on most flutes made from natural tube.