The only reason for switching to a secular name is so that people don’t scratch their head in bafflement whenever they hear it. I want people to focus on me and not get sidetracked with my “strange” name. Adopting the name Phineas is unlikely to improve things much.
Fair enough.
Phineas, however, IS the Anglicized form of Pinchas. If you’re not looking for the Anglicized equivalent, then feel free to choose any “P” name — Phillip, Peter and Paul all come to mind as names of Jews that I either know or related to.
The Wolf