"I’ve been using an older model Creek Co. pontoon for years and just recently picked up the Classic Accessories Colorado...just registered it with Az game and fish to use trolling motor due to the same reason..cold water cramps and ankle issues…"
http://creekcompany.com/indivdisplay.php?primaryAutoID=249&Cat=2 I love the tube, its a lot safer getting in and out than the round ones. Ihave a 6' pontoon inflatable, it nice but here on the prairie we catch a lot of wind. The u-bot is better in the wind , and its like fishing from an easy chair. Hope that helps.