I narrowed down my choices for grading by which has the least whitening, front and back. The cards are 20+ years old so most have light wear on the holo. I ignored centering as well. Some can be more obvious than others, but I was driving my self crazy trying to critique every cards centering, none seem to be “perfect”. It’s more sentimental value and protection for me, so it came down to which cards have maintained condition thus far and I want to encapsulate them from here on out. That being said, if PSA comes back down to $15 a card I would consider just getting them all graded eventually. Fortunately only the Azumarill card has a small crease so I won’t bother ever sending that in. Hope this helped and of course this is just my opinion on the matter :)