I'd be good with 3 deer (one buck max). I'm not sure it would really do much except for the potential psychological impact of creating the impression of scarcity. Maybe folks would shoot fewer deer but I really doubt it.

One thing to keep in mind is that we function with limited data that is essentially restricted to how many dead deer each county has at the end of the season. That's good for overall trends but its a small window looking at the deer population.