I got the newsletter email from Lee Valley, with a good article and write up by Konrad Sauer who redesigned a "Badger Plane".http://www.leevalley.com/us/newsletters/Woodworking/4/5/article1-3.htm
Here is the excerpt that prompted me to post this here (emphasis added is my own):
"And the tools I relied on were even more unusual. I needed to cut extremely accurate compound angles - something my table saw, bandsaw or even chop saw would not be able to do. So I used my Festool track saw and worktable.
I did some tests in plywood, with remarkable success
. I took a few educated guesses at the angles and, in short order, I was pretty close."