I just wanted to add my thoughts. I like this thread. I'm in the process of building my first timberframe and like everyone...I try to get the best joinery possible. Is it going to happen...probably not BUT...I know I've tried. No matter what gaps may appear...I will be proud of my work. I've had my hands on the journey of these timbers from tree to house. I cut the trees, hauled them from the woods, worked along side the sawyer and I'm the craftsman cutting the joinery for what will be the structure that shelters my family and friends. Add to the mix...my wife...she has been right beside me for the whole adventure...not watching but doing. She has her own chisels and layout tools....and she uses them. Although...she calls me the "Quality Control Inspector"...I think she's setting me up if something doesn't fit quite right.
Dan