hi guys I've been a white water kayaker for a few years, and an avid fly fisherman, I have an outcast fish cat 13 which is a subsidiary of aire. My pontoons are 13' x22" in diameter. And a single valve design but they do feature the airecell system as well. Right now I cant afford a 1500.00 set of tubes, but my buddy said I could use his white water frame with 3 yokes that he made for his 13' saturn(the fish cat 13 tubes seem more well built p.s). I was just wondering if these tubes should suffice until I can afford a new set, outcast says that the raft with their kind of chinsy fishing platform is rated for class 3 with a capacity over 500lbs. And I will be running solo again I am sorry I know they're not sotars or nrs tubes but for now I just want to be on the river after having my shoulder rebuilt thanks for any insight guys!