I also use scales as a double-check to my tweak station and on-track feel.
Your left/right split is a little higher than I like to use, which will make your tweak station indicate the way it is, even with equal ride-height. I try to keep the left/right percentage closer to .2% difference.
Do you have any room to move your ESC further left? Where's your transponder mounted?
When using scales, my setup order is:
Hudy Balance tool
Ride height/droop [once I have droop set with the ride height I want, I use downstop readings to simplify things a little]
Setup station [camber/toe]
Scales - If I don't like my numbers here, I'll reposition components or ballast, and start over. I don't use scales at the track, only setup station and tweak station.
On a more selfish note, any idea when we might see the T3'11 stateside? I've been checking US-based online shops for pricing and the ability to pre-order, but nothing yet.