Also-try this. Turn all your trims to zero and start over.
Turn your Dual Rate to 50%. Now turn your End Points to 100% left and right.
Now turn the D/R back up till your steering spindles hit the carriers or whatever stops them. If your at 100% and your still not hitting thr stops, now turn your EPA's up to 120% or whatever it takes.
I ghad to dothis on my old KO EX11 radio when I ran a Vector.
Also-what car is this for?? I know in big fast Gas cars (Impact and Vector's) it was common to need full lock to lock plus a little more.