So I have been building boards in triplets for years One cake up the middle 2 angled on the side \ l / for the most part. So I think ive been doing it wrong all these years I think even no's are the way to go \\// . I don't have a firing system and I like fusing boards for timing( i think it's an art ) so I can't mimic the 1.3 shows by spreading the cakes out 50 -100 feet.. so I am limited to making boards. My point is when you watch good 1.3 shows or nice pyro musicals they are usually balanced by even no's of cakes or mirrors. I'm thinking I should make my boards angles of 2 one way(one very slightly angled one a little more) and 2 the other way(mirror).