Im tasting vomit in my mouth for being linked to P/side, Quite surprised that dung heap is still around.... However I can see what you mean, That board is not worth 80 bucks, and this guy all but hands you the plans to his revision. My thought are flash pan dazzle, but didn't see a scope on his bench (although it could be off screen) and even on a simple circuit like that would be quite curious if it is actually right.... Again he did hand you the plans however, and burning boards is not hard at all, that photo etch can basically be done with a home printer and UV, But Allied I do believe has a service (don't quote me on that though).