I have older Firestones with 50% tread on the rear of my car. They are garbage. I had to replace two tires as I had a puncture that was too big to repair. I chose Nokian Haklapelliita R5s. I was stranded down a very commanding hilly curvy paved road in ~15"+ of wet snow and still falling. I had the 50% Firestones on the front, all-seasons on the rear and I had just picked up the Hacks, they were in the trunk. I could get about 80% up a hill and the car would break loose and pull power. So I swapped the tires on the side of the road...Hacks on the front, f-stones on the rear and all-seasons in the trunk. Made it up the hill first try, LOL.
I have had many sets of Hacks, and I will buy them again and again.