From someone who appears to be a physicist!
http://snarkypenguin.blogspot.com/20...ee-saddle.html
Boiled down to the essentials, his theory is that once you've adjusted the bass string from each pair for height and length, use saddle height (tension) to adjust the intonation on the treble string from each pair.
What say you guys? My initial impression is that it would cause everything to feel wonky, but maybe the amount of saddle height required isn't as much as I'd think?