Aaaaaaaaaaah...*scritches head & counts fingers*..........a while. On and off since spring of last year, hard to say exactly. It IS on my list of things-to-figure-out, once I finish my demo & my first pair, I will post an updated expected-completion-time (in hours) and average materials cost (in $/American dollars) on the first part of the tutorial (and here), so no worries~