Re: Line Array Setup and Angle
They are paid to tear down, so why should they complain because you did something tho improve the experience for those attending the show?
Probably because they don't know any better.
I got some beef from the crew at one company I work for because I started using different angels than 0 degrees in their groundstack rigs(4886). Everybody else uses 0 degrees because that is the way they travel in their flightcase and old habits. I set up one side on my first gig in 0, found it less than ideal, and redid it to something more usable. Some of the teardown crew they use thought that this was stupid because it meant more work and "We always do it like this", it took some effort and a demo setup to convince them that it wasn't just for looks but a performance issue.
It's funny how a lot of people understands enough about old style trap boxes to set splay angles and aiming points somewhere "properly" but have no idea how to implement it once it's called a line array. The speakers are still guided by the same physical laws dictated by our universe, so you can apply a lot of the same guesstimating when you don't have any aiming software and get a usable result IME 
It's real basic stuff like:
"How come there's no HF on the balcony?" Well, because all your speakers are at 0 degrees aimed at the back wall, put some splay in it.
"But it is a line array". So? How did you use to do it?
"Well, we put some splay between the trap boxes so it would sound more even and made sure that one of them was aimed at the balcony? So why don't you do the same thing with these speakers.
"Because it's a line array" Sigh.......
