I see the difference between the trailing (right side) and the leading (opposite) sides of the rotor and that was due to the large clearance you had before between the side seal and the corner seal.
So, the larger corner seal (with the groove in it for the longer side seal) lowers compression by....?
I'm looking at this pic (no access to the FSM for specs right now) and I can see how your corner seal(s) are different but since I'm not familiar with internals I don't fully grasp how the compression is lowered by reducing/eliminating the clearance.
http://www.turborx7.com/images/rebuild/Specs11b.jpg
I'd love to hear more about his when you have time.