I'm just finishing my M06 build, what have guys been finding works for tires/inserts and camber?

I hear the box setup tires/inserts works well, but also all S-Grip Radials all around?

Are guys double stuffing the rears to get gearing, like the fronts on the M03?

For camber, 1.5 front 2 rear (just a total guess)?

Thanks in advance!