I dont use it for exact numbers - more for trends from one year to the next. I have about ten or twelve years of data so I believe the changes from year to year are fairly indicative of trends. Fawns are bad to spend a lot of time on a bait pile - which will artificially increase their numbers. I also have done some spotlight surveys on my place (which I dont believe to be a good piece of land to do that), and do incidental sightings over a period of a week in late august - and those two informal surveys always show a lower fawn recruitment number than a camera survey. My camera surveys are fairly consistent with the annual statewide bowhunter survey and consistently lower than the incidental sighting survey done by g&f employees in Aug. The Aug survey I believe also inflates fawn numbers because a lot of my fawns go missing between the middle of Aug and the end of Sep.
But I also believe all surveys I realistically have available for use have shortcomings and should be used more for trends than actual numbers