I was not happy with the set up of the fixture and decided to take everything off and remeasure and realign the bulk head positions. I also purchased some sheet rock and installed it above the fixture so all the bulk head positions are now on the ceiling as well. I had to reset one side of the fixture as due to drying the level was not quite on. As I performed this task over and over I decieded perhaps I'm chasing for no real reason. I'm within .1 degree on all points for level. Thats 0.1 or less. I'm happy with this and am willing to settle.