Difficulty in truck alignment

it was no problem for articulation and free movement although at the limit, but it didn't drive right above 5.5*. the steering went kinda nuts and got worse from there. it's absolutely perfect now at 4.7/5.2*

 

Why do you want so much caster?

 

i have my truck setup differently from anyone I've seen here. it's all about my total setup and what I'm trying to do to suit how i like to drive and how i like the truck to respond. I'm a handling junky and want it to drive a certain way. so, the high caster is all about proper steering weight through its travel, highway stability above 70mph, and being able to throttle steer effectively.