With a cat stove you can just run with the bypass open a bit longer as well. No matter what stove it is wet wood is going to seriously reduce performance. Even in old pre epa stovesI should've worded that "Non-cat stoves are said to be more tolerant of wood that's not quite dry." I haven't tried burning any 25% wood in my SIL's not-cat.
Based on what others here have said about damp wood in a non-cat, I figured maybe you could fire it a little harder and still get some decent secondary burn, since you could possibly get the tube area in the top of the box hotter. That approach doesn't work with the cat stoves I've run; With more air, I end up blowing smoke through the cat too fast for it to handle and the cat never gets burning very hot due to that, and to the moisture cooling it.
Agreed, any time you run a harder, you blow more heat up the flue. If you still can't get the secondary firing good, it's gonna be even more wasteful.
Another SIL's friend is getting a non-cat, and I'm giving him some 25% wood to get him started, so I'll see how it does. I wonder if some non-cats handle damp wood better than others..? 🤔