Trailfinder linked geometry vs SCX10 geometry

[arnesto]

Anyone compared the two? The SCX10 seems to have it sorted well with no roll steer. I haven't seen a linked TF2 yet in person and was wondering how well the RC4WD link setups are designed/function.
I have been CADding up my own 3 and 4 link for the TF2 to look a little more realistic than RC4WD ones. Not happy yet with mine but my machinist is going to be off sick for a long time so it's still an early prototype with geometry based on pictures of the RC4WD ones, not sure how close mine is to the RC4WD, but it's got a few degrees of roll steer I'd like to remove.
To build it using the calculator for full size vehicals is going to require waiting for my machinist so in the mean time I am trying to make the best of what I've made so far, I want my rig running again