In the last case I was involved in where the shooter used CorBon +P .45, the other side didn't put much emphasis on it, and the shooter was acquitted.
In short barrel .45s like the G30, it's common to use +P to compensate for the loss in velocity with standard pressure loads.
In California, you can make the point that LAPD issues HST +P .45 to their several thousand officers who carry optional .45s as primary duty weapons. "If it was good enough for the police to choose to protect people like me and my family, it was good enough for ME to choose to protect me and my family."
While I've seen the "overpower gun argument" brought up in many contexts (the 10mm with JHP in the Harold Fish case), and the use of HP in general made an issue in many other cases, it is not hard to defuse with solid testimony by expert witnesses, or material witness testimony from the instructors who trained you and recommended such ammunition.
Bottom line: so long as you can explain your choice, I wouldn't worry about it.