for anyone, including myself, who didn’t understand what the hell i drew on the board to explain this process., here are some videos that do a good job explaining this technique, plus where to buy the actual jig.
first, kinda long, but he does a great job explaining the theory behind the process, using visual aids.
https://www.youtube.com/watch?v=YlTLpXzTja8
second,even longer video, but this is where i first saw the idea, and this guy also has a lot more interesting videos.
https://www.youtube.com/watch?v=iKiwTkX4EhE
third, is a store boought jig from rockler.
http://www.rockler.com/cove-cutting-table-saw-jig
fourth, is an article from my favorite Canadian woodworker.
http://woodgears.ca/cove/
plus his youtube channel with a whole bunch a shop made tools and jigs.
https://www.youtube.com/channel/UCckETVOT59aYw80B36aP9vw
Great videos, Mike! Thank you for sharing!