I have a GPS watch, but for some reason, this year, the golf club decided to create 6 sectors on each green, on each nine of each course. We used to have red, white and blue flags. Red being at the front of the green, white in the middle and blue for the back part of the green.
However, this year, for example, on the 1st and 9th hole on any of the three courses, they've attached a number between 1 and 6 to the yardage sign/post to denote that specific "9 holes" would be using a specific sector number where the flags will be located. On each green, the 6 sectors are numbered differently. For example, if the first nine is using sector 3 as the flag location, the first pin might be front left. On hole two, sector 3 might be back right, and so on for each of that particular nine's greens. The sector number would change for the back nine.
The difference between front and back flag locations, for example, might be 15 to 20 yards. So, when you get to the "hitting the green spot" on a fairway, knowing how far the flag is, can be a factor in club choice. The range finder will give pretty accurate numbers.
For the most part, I still try for the middle of the green. If the flag is at the back of the green, and the middle of the green is the upper range distance of a specific club I'd be using, I'll club up for a little longer shot. Hopefully, I'll not hit it too pure and go off the back of the green.