Just asking out of curiosity. I think the vast majority of putter move the arrow and do all sorts of calculations.
I hardly ever have to move the arrow unless it's an epic break. I've played this game so long and so much now that the only thing I calculate is distance (which is fairly easy to do in your head) and the % off ding I have to hit (which I do by just looking at the screen and making an intuitive decision).
If there are others that putt off ding almost all the time, I think it would be fun to learn what your strategy is for that. Swap tips, etc. Maybe even discuss what putter stats are better for off dingers.