Hey David,
Are both of these tubes round? I switched to a U-Tube about a year ago and like it much better than the round models. I feel they are much easier to kick in, especially if I plan on going any distance during the outing. I don't know if you have considered a U-Tube, but it is worth a thought. I fish out of a Caddis Colorado and am very comfortable in it.
Good Luck,
Dave B.