Re: O'Day DS or Flying Scot?
1) Having flipped a scot a number of times I question your statement that they don't flip. It's such a common problem on the Gulf coast, where they are used for club trainers, that we even have a nickname for it. And since they can't really self rescue (they don't sink but fill up past the gunnels) our club requires a standby person ready to tow them in in the event of a capsize.
2) The centerboard trunk (also called the knee breaker) takes up a large part of the cockpit. And is prone to, well cracking knees, and busting shins.
3) The specialty crank is easy to loose, and can only be replaced from the manufacturer.
4) They are overly heavy making trailering and set up difficult.
5) The boats don't hold their value very well, due to a known issue of the fiberglassing being too thin at the shrouds. Which causes the hull to micro fracture after a few years. This causes major oil canning.
6) The one design sails are poorly designed, which requires huge amounts of vang to be carried to get proper sail shape. This leads to regularly breaking booms (we carry three booms to every regatta).
7) For new boats... Despite a recent reduction in price, they are still seriously overpriced when comparing them to other boats on the market.
8) of the GYA there is minimal to no competitive racing.
These are the primary reason that the GYA is in the process of selecting a new trainer boat for all of our club boats.
Again it depends on what you are looking for, and what you are looking to spend. But for the price of a reasonable Scot you could also find a reasonable condition Viper 640, which is massively more stable, more comfortable to sail, and has a much better design. A little smaller is the VX One which is from the same designer, but about 15 years newer. But there are no used boats on the market yet.
The K6 has a pretty good following, but is a little more relaxed than either of those.
Club 420- is a pretty laid back boat. But with no ballast can flip pretty easily.
Lightning - not my favorite, but has a nice following.