The online "guide" is a great idea though. It seems to me this forum has the documented projects, media application and expertise needed to create such a document. It would be great if we could put together a panel of the most experienced blasters here to contribute information to creating such a document. We have the people, experience, and information here. Would be nice to put a spreadsheet together as a kind of "rule of thumb" document. Obviously, ever job is different with it's own set of dynamics. Having said that, a general guide would be a great starting point. Especially so for newbies like myself. Anyone that's greatly experienced care to participate?