Even the Hills will tell you, if you plan to run a belt on it, you are better off getting the Ute before the lindi. The only thing the Umalindi does better than the Ute is to be smaller. The HPG compression system "sizes" the pack to your load. I would only pick the Umilindi over the Ute if it was to be primarily used as a travel/flying pack. You could probably put shorter stays or make some "bayonet" style folding stays and do the same thing with a Ute.
