How did you manage to completely remove kingpin inclination in front view - presumably while preserving general MacPherson strut layout and operation - or if you changed something in the way a MacPherson strut system operates, what did you change?
The upper strut mount is the upper joint of the steering axis. It has to be inboard of the top of the tire. The lower joint of the steering axis is the outer ball joint of the control arm. It has to be somewhere within the tire in order to have scrub radius that is acceptable for a front-drive car ... but you're not using front drive. Did you move the lower ball joint substantially inboard, thus operating with substantial positive scrub radius? How did that work out? What does the steering do if you are braking on uneven surfaces?
Kingpin inclination doesn't directly lead to weight transfer ... cornering G-force, center of gravity height, track width lead to side-to-side weight transfer, and this is essentially irrelevant of the steering geometry. Steering feel is sure affected, though, and it does have an effect on the camber, but it's only significant during low speed cornering. The steering angles during high speed cornering - unless you are going sideways - aren't enough for this to be significant.
There have been a couple of variations of MacPherson strut lately that separate the steering axis from the upper strut mount - GM Revo strut, and Ford has a version also, but I've forgotten what they call it. Strut stays stationary when the steering turns and there's another set of pivots for the steering so that the steering axis can be more vertical while still preserving near zero or slightly negative scrub radius, which is necessary on a front-drive. Given that the applications of those struts are on higher performance vehicles, your objective of getting less kingpin inclination is probably in the right direction ...