My latest setup at TFTR in Melbourne. Nice flowing track with good traction. Still want to find more steering - mostly mid-corner and exit. I switched to LTC-R body which did not add as much steering as I expected... Neither did going to 2 degrees rear toe. Going back to the original 2 piece upper deck definitely helped though. Next change will be to change rear hub spacer from 3.0mm to 2.5mm. This has worked well in the past.

You could try going the other way on the rear blocks, say X/E or A/E for the same toe-in angle. Fine tune the width on the axle shims.
I always found a narrower rear gave more rear exit grip... it's to do with the rc and the shock positions moving as well as the arms.