Jason,
I have never ran the 3 degree rear toe blocks anywhere. I'm not sure I even have a pair. I was always running 2 degree rear toe and running the suspension soft front and rear.
I have tried the same tyre combination as yourself, although I also used the grooved Pits on the rear, as well as Cross 30's.
I look forward to racing with you at the Summer Nats. By then I hope to have a new setup for the track. I will assist you if you want it.
Regards,
Calvin.