Joe0113, worst case scenario they don't work. Just delete. No problem. Update PRL, etc must be done in TW.
Yes, if you flashed the wrong GAPPS then you need to factory reset, wipe cache, dalvik, and system, to get rid of those pesky old wrong GAPPS. Then flash the proper PA and GAPPS. Done.
How do I update my PRL? I can't find it lol.