If you reference the yardages on the sprinkler heads in fairways, you have noticed that they faded very quickly; some in less than a year. This is disappointing, considering they are so new. I am working with the our Rain Bird Irrigation rep on resolving this issue. These numbers were somehow printed onto the snap ring of the sprinkler head. I'm looking to have these replaced with engraved numbers, that can't fade or wear off over time. I appreciate your patience with this but please know it will ultimately be resolved.