Last year when I had mine aligned, they went by my suggestions.
.75 NEG camber, 1/8" toe in or the metric equivalent to that and as MUCH POS caster as they could get.
I have stock UCAs but with offset bushings. The man got 5 1/2 degrees of POS caster.
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The front tires are a 275-40-18. The car steers great, handles great too.