Panhard bar adjustments

I am running an IMCA Northern Sportmod. 3 link. Solid pullbar. Panhard bar behind housing.

My car has a slider on the frame side so it is adjustable in small increments. The housing side has 4 holes on it 1" apart, not a small increment adjustment.

My question is; what is more important if I was to adjust the frame side? The height, which would affect roll center? Or the angle?

Suppose I wanted to snug up entry with a 1/2" panhard adjustment. Would I raise it on the frame to get more angle but a higher roll center? Or lower it with less angle but a lower roll center?

Which aspect of the adjustment is more critical?

I was wanting to avoid the housing side adjustment because it seems to be a big change.

Thank you,
Ryan