I always advise with these type of repairs that it's at the customers risk, with no guarantees. Imo, I'd put the money towards a new bat, as once they start going in various places you're fighting a losing battle in the long run.
It also depends how the rest of the bat is. Is the handle ok? Any cracks in the shoulder ? (You can't always see them until it's in a vice and you can twist the handle). Is the face getting the point it will soon delaminate etc? These are all points i consider before advising a customer, but ultimately it's their decision once given the advice.
I'm just not comfortable just fixing anything and everything. Just because it can be fixed, doesn't mean it should be imo.