Has anyone used the Firm Feel 20:1 manual box

No not a trick question, but an over flow from the pst discussion. Before I plunk down for a new box, I just want to gather experienced input. I have a stock box now, with wide front tires on a dart and it is a bear turn while at a near dead stop. I changed out the smaller mopar steering wheel and went back with the factory 70 A body style and I really did not see much improvement.