I run 7 degrees caster. -2.3 camber stock ball joints. I always considered more caster to give more feedback to me, since there is heavier force feedback on the steering with more caster, and so when the tires lose traction its that much more apparent. Lighter weak steering force doesn't offer as much contrast between grip and no grip. It actually feel more vague, certainly on EPS. So was surprised to hear of a few guys state the opposite. Either way, more caster is generally better performing.

Max the caster out (6.5) with -1.6 camber on both of my S2Ks. Like the way it gets back to center quick.

Agree. Reducing the caster reduces the effort which may be useful in cars without power steering. Little caster (and even negative caster) was used in some cars before power steering became common. For example, in a '49 Ford the caster spec was +0.5 to -1 for sedans and -0.25 to -1.75 for station wagons.

I should update this since this thread was bumped. I went from 7.5 back to stock (IIRC 6.5). 7.5 was too much for me. It made it very hard to make small, accurate corrections. And as Antonov said, the adjustments for camber and caster are linked. On a stock or limited set up, max out camber first. If you have room to adjust caster after achieving the desired camber than add caster if necessary. But as I said I prefer stock caster.

I've got caster maxed out and if I could get more, I would. The steering is nice and light but still provides enough feedback to feel what the front tires are doing and if they're starting to lose grip.