kchacker I rarely see marked sprinkler heads anymore, and when they were prevalent, they were often wrong.
Hate to remind you of your VERY FIRST ENTRY in this thread.
YOU talk about the LACK of accuracy of sprinkler heads if you can find them.
I comment, with a very realistic figure about how many people can actually hit a ball 200+ yards with any accuracy (looking at sprinkler heads or using GPS units)
You now said.... " If they sold a rangefinder that was good to 5 yards, he would probably buy that. No one asked manufacturers to make a rangefinder that measures such a precise distance".
So, either YOU want them accurate (for whatever you are "zapping" - or YOU don't.
Either way.... MY point is..... 70% of the golfers on the planet really don't care what the number reads on the sprinkler OR the GPS unit because it literally is a crapshoot.
Sorry, but it is a fact.
The average golfer in the USA shoots about 100