We have just done 10,000 sets each ukulele type. At present most of our collaborators are working very fast to package them and send out to USA, in first instance. I have found the final formula and I must say that I am very impressed about what I have heard. I tell this thing without any business goal but just because I am a player (amatour) and I love music I have done a few of these carbonblack even for cuatro, charango, viola caipira, banjo, cavaqhino etc etc just to see what happen on these instruments. Yesterday I have done some Trebles for the classical guitar: amazing!
well, I am leaving Italy to China (due to my job) so starting from monday and for 1 week I will be not able to answer you there, guys.
Ciao
Mimmo