its a tricky situation to maintain high buck densities with fewer does and lower fawn crops. first off your bucks will try and kill each other fighting for the few does available. with lower doe densities you will be producing fewer future bucks in the long run. common sense says more fawns equals more bucks in the future. just my 2 pennies....
How do you account for higher fawn recruitment as female population health and age increase.
Biggest question is how many bucks and does will use the 460 as a core area and what will it support.
Personally I wouldnt care about spikes, I'd put a hard number on age and watch the dominance trends.
Doe flop like STX said and watch age harvest. If you get above cc then cull via dominant bucks with lowest potential.
Mature bucks don't buddy up, so no matter what you do only a few will call that their core area until that dominate buck leaves