Great link, Jordan.
When I first began reloading for rifles I played with seating depths extensively, and I thought I saw a sine function when I recorded results meaning there were actually multiple sweet spots. Now that I've read that article the concept of proportional changes in distance to the lands over time hits like a ton of bricks. During that time my uncle was mentoring me and we kicked around the idea of finding seating depth first, then the powder charge...but we never pursued it. Too bad, really because it means I've been missing the boat for almost 30 years.
The idea of reworking all the loads I've developed wrankles just a bit but one of the biggest reasons I play the game is that I like to experiment. It looks like I've got a fresh and fully loaded plate in front of me now.
