OK so if I was going to give it a goby hand what about just using a 1-1/2" framing chisel?
On the router bit when you say 1/2 to 3/4" is plenty are you talking about diameter or depth. I see that many of the bits sold online show the carbide being only 3/4 to 1" high. It seems like a larger bit would level out better but take more horses. ANy further detail on the router bits would be appreciated.
So how long does it take an experienced guy to cut an 8x8 open housing where a beam joins a post?