Do some research on Sailnet it has been discussed. I had a Nonsuch 30 and loved it for the kind of sailing that most people do. Less work, decent performance unless you absolutely need to point really high - I had considerable success in no spinnaker class racing with mine.
The masts are seriously tapered and the top of the mast can bend up to 4'. The bending absorbs a lot of load when gusts hit so the ride is smoother. BTW, I can tell you nothing about the Hunter version of an unstayed mast.
Heading back to Lake Ontario for this summer. Relatively few stops along the way from Grenada. Martinique, Guadeloupe, St. Martin (must have something to do with the French food), then Bermuda, New England and up the Hudson/Erie Canal. We were going to go via Newfoundland and Labrador but June remembered that one of the kids is getting married this summer - details, details!