I would recommend a V tube, too. The round ones have you sitting very low in the water - cold and slow moving. The V tubes like fishcat, fatcat, etc., have you up where only the back of your legs and butt are in the water. Unless, of course, you pee down your waders. Then, the rest of you will be wet. Being up higher also lets you kick and cover more water than if you were down deep in a donut.
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