Studded tires are a no brainer! My wife is healthcare and I have a Winter biz and we must drive in any condition 24/7. Snow tires without studs are a marketing scam and a joke, just look to any northern tier state, everyone runs studs. Once u run them u will never go back, they only cost a little bit per tire to stud. Only down side is dry/wet braking falloff, just account for that. Unstudded winter tires are useless. Throw em on 15 Dec rip em off early Mar. My wifes car has crazy big and wide wheels so I have oem nominal size steel rims and studs for her car.