My experience has been wet wood does surprisingly well when it has a steady load in the winter, less efficient, but it works. You'll want to keep a closer eye on your fan because all the steam coming through can cause fly ash to stick to it and you'll need to scrape it off. And you'll want to be more careful about not letting ash cap the bottom of the air curtains as it can cause creosote to back up inside instead of draining and burning up.
Come spring with long idle times and wet or green wood you'll start seeing lots of sweating and you might start to gum up your air intake box. So keep your dryer wood for mild weather.
A G2 can handle 10" pretty good, bigger if you have some small slabs/splits with it. Just watch the coal bed.
Someone who pays attention can go way outside of the optimum range for fuel, but you gotta watch a few things.
Keep experimenting and posting. I like this stuff. Some more videos please, I subscribed.