Every steering box I've ever adjusted did indeed had a centerpoint that was tighter. You have to be careful because if you get it too tight while off the centerpoint it could prevent the wheel from centering after a turn. Make sure to test drive and be careful at the first corner being prepared for it to not center.

__________________
2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

Annoy a Liberal, Read the Constitution