Since we have almost exactly 10% less hunters now than we did in 2000 thats 10% less pressure and therefore by the logic of your formula your 40% number would have to be adjusted to 36%. Add to that the reduced hunter success rate (lets just say around 10% less) and the number goes to around 32%. In other words, using a lower total harvest requires that the other variables be addressed too.
Wrong again! Even with 10% fewer hunters the harvests are still keeping the herd stable or reducing it even more. Therefore your adjustments are not based on reality.