I had a nasty swim in a badly balanced IK on the Middle Fork this summer and felt like my life vest did not keep me above the water enough even once out of the meat. Observers felt the same. I weigh maybe 220 with a husky build. Current Vest has 15lbs 8oz flotation. I would like something that levitates me out of the water and places me on dry land if that's available. Otherwise I see many vests that I can buy that add 1lb-2lbs over what I have, then you step up to 24-28lbs. Would a small change make a difference or should I look to more bulky vests in that higher range?