For me - the reason I didn't go with a viking was the diameter of the tank. I have a very specific place I store the tank (inside a 5 gallon bucket in a drop bag) and going to a larger diameter tank blows this. I really wish they made their 11lb tank not just as a shorter version of their larger one but taller AND narrower. Oh well.
"It's supposed to be hard. If it wasn't hard, everyone would do it. The hard... is what makes it great."