Spot on Greg,
I can show you older subjects that ended way way up left field but still gave us something to think about.
Rod, rest assured, if any posts leave the main subject of sailing Top Hats you will or may not notice that they disappear! That goes for the weekly spammers that try to get onboard.
Now to the subject at hand, I have noticed that the manufacturers have moved on and today you will find that the old boat bags are combined with lifting pontoons. I think the bag idea was just too hard to manoeuvrer a yacht into and they were easily subject to damage. Come to think of it lately I've only seen stink boats using them [no keel?].
Phillip
PS. I'm an expert like you Greg.