Never up, never in...
This law is valid here, too.
IMHO putting is the most precise math thing on these courses, take length & elevation & allow some for sloping, divided by green speed. Precise calculation and metering helps a lot! (I use help from Excel).
Alas, there are difficult reads. Some short putts tend to go uphill more than you think (one of the first three of KIA comes into my mind).
On longer putts >50 ft, the raw estimation of elevation influence, working with short putts, becomes inprecise and leads to bigger deviations.
Most annoying for me is the "0 inch" indication on very short putts. With the arrow down in most cases, sometimes it hides a significant upslope - course knowledge is necessary!
Like RSG #17 from the back, there are quite a few severely downsloping greens. You miss on the low side by 2 feet, it says "arrow down" - but upslope!
Easy to leave those putts short :(