Re: O'Day 192
from my experience after buying an O'day 19 this year. (haven't sailed it yet) not a ton of info out there, but the oday owners group mentioned above has been helpful. it does seem like a well built boat and I was able to purchase a manual for it. (really a few loose pages but it got me the info I needed)
apparently the 192 has a larger cabin and more of a shoal keel with a drop down board, other than that, same boat as a 19.