Mujitsu and Tairaku's Shakuhachi BBQ

Hello to everyone,

I am new to the forum (although I have read most every post) - and to the shakuhachi.  I have built an Anasazi end blown branch flute and another end blown branch flute tuned to the shakuhachi scale.

After listening to the scale of the 1.8 that Perry turned into a 7 hole I am contemplating turning a Yuu into a 7 hole flute. Can anyone advise as to the exact placement and size of the two extra holes? I have viewed a few photographs and while I feel that I could guess-timate the location, I would feel safer with some advice.

Thanks

Ron