I would keep the logging roads open, even it is just running at atv up and down them early in the season and again a month or so before hunting season. By doing this, the deer will use them and it gives you a clear trail to walk once the undergrowth comes in. We have kept several open on our property (although hardwoods) for 20 yrs or so now and the deer still use them as corridors and a few are strut zones for turkey. Also makes it easier to haul out deer.