To me, and note this is just fact and no allusion to my shooting ability, I'm not even a player. Cheating pockets is a function of where you shoot the ball and not the pocket. A shot ball stays the same size and on one vector. The pocket stays stationary and the same size.
IOW, you want one side of the pocket, shoot _that_ shot. You want center pocket or other side, you shoot the appropriate one of _those_. If one takes the bother, it's easy to see the plus or minus in even "straight in" shots. It's the refinement to this degree - pun intended, that's vital to the advancement of players.
Pockets that exceed my error margins and indeed most player's margins, have no place in pro competition.