Steering Box Ratio

Maybe the Firmfeel box solves the slop problem. If so, my complaints only apply to a stock unit.
What alignment specs are you running?

Not sure of the specs, not as good as yours. I run standard rubber upper and lower control arm bushings, no offset upper control arm bushings. May be 2 or 2.5 camber. Jeff will get as much as he can and I trust his judgement. He has done all of my cars for 40 years. I have seen open wheel race cars on his rack. I run C body tie rod ends, but I think it is the roller Idler arm that does not deflect. I guess it all adds up.