If the front edge of the front arm is higher than the rear that's anti dive.
If the rear edge of the front arm is higher Han the rear that's pro dive.
On the tamiya cars we used to run 0.5mm pro dive. It's smoothed the car out on entry to the corner.
I'm currantly testing with ackerman positions to see how close I can get the outside wheel lock compared to the inner, I measured it before while running insert 10 in middle position. Outer wheel lock was 24-25 deg and inner was only 16-17 degrees.
When I compared this to other cars, this is was the lowest outer wheel lock of the cars I've measured, with most coming in at about 22-23 (usually only a degree or two lower than inner lock.....
I'm aiming to get it as close as possible to reduce front tyre scrub that I'm getting at the moment.
I'll do some more testing and report back when I get some more quantative data to give rather than theory.
Luke