Eric,
There's a lot of unintuitive shit going on with the lifts, so as long as the weight keeps going up and the mechanistic analysis of the lifts is sound, you're fine.
I don't think anyone would press and bench with the grip that we use unless they thought about it a lot and trained for a while. I've never had a client take the grip and go "yeah that makes sense" until the press something heavy. Then it all makes sense.