Should I re-rip?

I ripped all my CDs to FLAC files using dbPoweramp on my PC yrs ago. I now have a better DAC and want to maximizie sound quality.  WouId it be worth my time to re-rip my cds to WAV (I even see that Steve Nugent on his website recommends AIFF over FLAC). Is lack of metadata still a problem with WAV?
Also, in dbPoweramp there are a number of setting options.  When I ripped to FLAC I just went with the default settings. Was that a mistake?
I’m not a computer guy. So please keep explanations very simple. Thanks in advance.