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. 
rockyboy
@audioengr

Don’t feel bad Steve. The OP didn’t even acknowledge me once - let alone thank me - for the "free advice" I provided.

My job is to shed light, and not to master. :)

EDIT:

And extremely meaningful advice too, for that matter.
If your PC and equipment work properly it won’t matter the format as long as it is lossless redbook. Digital is digital. If you have issues (differences) then double check your conversion software (FLAC to WAV or WAV to AIFF or ALAC or whatever) and your pc software and all hardware. Differences on identical data suggest software , firmware or hardware issues.
Thanks to all for their input. I’m dropping out of the forum.... permanently.