Hi Steve,
You may know the tendency for people to overestimate wind and waves. We've been in waves reported (not by me) at 6-8 feet and close. It wasn't fun, but we never felt unsafe. Also got caught out where the waves were taller than the cabin top; we slowed to about 5-6 knots, took ugly water over the bow, and would like to not repeat that. Stuff came off the shelf above the helm and off the countertop, but we chugged slowly along to get into the lee of an island for some protection.
The boat can certainly take more than I care to. It's not like we go out to test it, just a couple times (and we spend a lot of time on the water) where the forecast didn't match the actual conditions and things deteriorated.
For downright uncomfortable, we ran back across Lake Tahoe once with gusty SE winds that resulted in 5 foot waves that were closer together than I've ever seen before... so would that be lakeworthyness? I ran off at a diagonal, trying to stay with the waves, but it was still ugly.
Running far offshore is not something we do with our 25. Probably the longest was 90 miles in Florida Bay, direct from Everglade City to the mid-Keys... waves 3-5 and dodging about a gazillion pots. The boat handled it fine, but we were all bushed when we got in.
So, using those as examples... anywhere close to your definition of seaworthy? The boat keeps the water on the outside, tends to pound in close chop, but can be handled by slowing down. The camperback helps keep water out of the cockpit - the stock scuppers drain too slowly for my tastes.
Still, we are doing this for the fun of it; and if it isn't fun, I'm going to be looking for some protection ASAP. But I've never felt that this boat couldn't get me to that protection. I'd rather wait out ugly stuff than go looking for it; the above examples are very rare with the cruising we do... but certainly instill confidence for us in our boat.
I'm sure you'll hear from many others.
Best wishes,
Jim B.