I have spent many happy hours as a donut's center, to the point of having two suffer material failure. While I have moved on to a V tube there is a place in my heart for a round tube. I have become mostly a trout fisherman but your article inspires me to get on some warm water. I have yet to catch a trout to match several LMB I have landed, not to mention catfish and grass carp. Swimming around backward in an upholstered inner tube is a great way to spend a day.
One of my AZ friend admits to dozing off in his donut.
It's easier to fool people than to convince them that they have been fooled. Mark Twain