Aiming on sideslopes (Putting)

This is trivial, but I feel there is no harm in creating this pic & posting it. Have discussed this with other golfers & been surprised to hear that even pretty good golfers "never thought of it" or do not even get it if explained. Then it stunned me that even Pelz classified it (or more or less the same idea) as "research results".

Any decent golfer is capable of more or less identifying the highpoint, i.e. the point where the perfect putt will be furthest from the straight line to the hole and starting to turn back towards the hole again.

Seems the problem is that so many are occupied with determining that point that they actually take a DEAD AIM at it.

The pic should be obvious. You need to aim ABOVE the highpoint for the ball to actually pass it & make its way back to the hole.