whiteline alk or superpro caster bushes
 

I do have both waiting for beeing installes.
Which would u recommend.
Do whiteline alk have advantages over super pro bushes?

Id be very interested to know some facts about how much each of these products actually change the geometry?

Additionally it would be great to know for Roll Centre Adjusters (lower ball joint + sometimes track rod ends) what dimensions are of these products (whiteline, zero, superpro,) as im creating software to map suspension geometry.

I would install the SuperPro caster bushes. Just make sure the bushing is properly installed/oriented in the housing to maximize your caster.