I feed after the season is over.
It's my belief that the herd , especially the pregnant Does really benefit from feeding due to the lack of vegetation and other available food sources.
I feel like by feeding the Does after the season there's a good chance they will remain on or near my property, thus the chances of their fawns being born on or nearby.
From what I've seen on my farm, when the Does raise their young ones nearby , they tend too hang around until hunting season.
Also I find it a valuable tool to "inventory" the remaining buck herd after the season closes.
I don't feed during the Summer months, because there's plenty of food available at that time.
I do maintain a year around mineral lick.
I only have 80 acres to work with, mostly thick cover and scattered hardwoods.
I only run one broadcast type feeder and two mineral licks on my place.
I have the feeder set to come on twice a day , morning and afternoon.
From the end of deer hunting season until things start too "green up" I keep the feeder going.
At the rate I feed it usually only takes 200 - 300 pounds of whole corn too keep them around .
Not a major expense...
I do maintain a couple small clearings/ plots of 1 acre or less on my place, they contain clover, fescue, winter wheat in the late Fall and I broadcast " special plot mixtures " in as needed.
For me that's what seems too work the best, others mileage my vary.