As usual this is the great info I've come to love on this board. I will go ahead and set up with a 7' hose and a 22" backup. I do have a can light so the routing should be good. I have decided to go with a standard HOG harness opposed to the Hollis Elite 2.....mainly because I'm having so much trouble setting the thing up, and the chest buckle it comes with gets in the way of my dry suit inflator. Again, thank you to everyone for your help.