So I have successfully finished my first timber frame. As I'm sure many of you can imagine, I now have the timber frame bug and am ready for my next project. Which brings me to my question(s):
I have access to 3 larger (~60' tall) white pines that are currently standing and are going to be removed for a friends new garage. I would like to try my hand at hand hewing these logs for timbers to be used as the frame for a sauna. From what I have read it is better to hew a green log vs. a dry log. Is this true, and if so, how dry is to dry? Unfortunately I can't start this project for another year but it seems like a waste to not use these trees. I have a lot more questions, but hopefully this will get the discussion started.

Thanks!