The best spots are larger country acre 'estates' with 2 or 3 acres, $5,000,000 houses, and a backyard that backs up to Percy Warner Park, Radnor lake, or any decent sized bedding cover of 5 to 40 acres controlled by the city, county, or state with no hunting. The very best spots have fruit trees or gardens in the backyard (the landowners get tired of the deer eating their home grown veggies). Buffer zones along creeks are also travel highways. Secure permission by telling the landowners how terrible overpopulation of deer herds is for their health, how they starve from lack of food, and how important population control is. Then blast all the areas you secure permission on with cell cameras to locate a buck over 160in and kill him. Pray he dies on the property you have permission to hunt.
I had a buddy doing this way back in the early 90's... He killed over 20 P&Y bucks in a few years, best was 197" and IIRC 5 over 170". Back then, noone was doing this, so deer were reaching maturity. But there is a LOT more pressure there now, and it's hard for those 140in 3.5 y/os to get a pass from most, so bucks over 170" are not as common as they used to be.