If you have other N172s in holders and prefer consistency, get it graded. If you have other raw N172s either in penny sleeves or top loaders or binder pages, throw it in with those.
Looks like you are also collecting a beater T206 set. Would you rather add a couple more cards to your collection or use the $15+ (s/h both ways + grading fee) to have a trimmed Myers in an authentic holder? Your call
FWIW I have all my N172s (range from beaters to nice HOFers) all in binders so I may be biased.