Regarding knowing what biologists know...I guess I subscribe to this: If you know this... and you know that... then acting on "known" facts by implementing a plan is better than doing nothing.

If does aren't bred on their first cycle and they go out of estrus and come back into estrus 28-30 days later, you have to look at why they weren't bred on their first cycle. Availability of bucks? Hmmm... seems like a plausible answer. How many times do does 'conception dates get pushed back by 30 days because there aren't enough bucks to inseminate them?

Wouldn't basic reasoning suggests that if better sex ratios were in place, many does would be bred on their first cycle thus tightening conception dates and cause the fawn drop to occur earlier and compressed? I won't get into why this is a good thing but wouldn't that make sense?