1. Change your DL (and other air carrier profiles) so that they match your DL and name associated with TTP (Pre-Check, GE) exactly. While you will not routinely be denied Pre-Check, the better the name match, the higher your percentage will be. If everything is working, while there are occasional random and intentional Pre-Check denials, they are very few and far between. Most people with exact match, see 100% Pre-Check selection.

As to titles, do not do it. There is no reason for it and it has the potential for gumming up ticket names when you are booking or rebooked onto other carriers, especially overseas.