Wingbone

As opposed to looking at pictures of corn-fed, genetically managed Texas deer.
The tooth wear method is accurate enough for most, if not all, game departments and biologists to use.
Tooth wear can vary in different regions due to soils and type of food source. More sand in the soil will cause teeth to wear faster than areas with loamy soils. But it will be uniform in that area. Perhaps where your experts were from, that would be typical wear for deer of that age they were used to looking at.