I love soprano ukes and have recently become interested in sopraninos...do you know anything about their history? I hope you'll share more video as your project progresses.
Don't despair - I can do the 4 strings - it's just that i am looking at a 'new' ukulele concept. I recently broke the 4th string on one of my ukes and messed asround with it for day before replacing the string. Don't dismiss it - it is a cool uke-like sound that forces some real left brain thinking.