In Chad's report he states that it is tough to determine the impact of EHD. While you could never be exact, it seems to me you could use the data to see trends.
If you look at the broad harvest, most counties are stable and the harvest rate was basically the same as 10 years ago. So you could look at the counties with the biggest declines, then see which ones have many confirmed reports of EHD.
While you may have a county with 4 doe tags, how many really took that? If only a couple took max, and big declines, EHD is having a large impact. Vice versa, if many hunters and blasting deer and no EHD, then big declines, reduce antlerless dramatically in that county. Given that deer herds are fluid and most stay in a relatively small area (< 5 sq. mi.), adj. per county based on the lowest no. of deer.
As someone who filled out the survey, the questions are geared for your personal experience. However, that doesn't necessarily mean I have a brown and down mentality. I want everyone to have a great experience for the future of the sport.