Does anyone have an Rtic Softpak 30 and use it to take frozen meat/fish on a plane as a carry-on or personal item? I've been debating on getting either the 20 or the 30 for use on fishing trips. I'm leaning towards the 30, but I'm worried that it won't fit under he seat or in the overhead compartments of some of the smaller jets that often fly out of Dayton International where I live. I have no doubt the 20 would fit so I'm really looking for first hand experience with the 30. Anyone use this cooler as a carry on?