wet conditions,
snow,
example 1.
last year in the snow i had bridgestone reo40's grip was almost non exisitant traction was poor and all corners were power slides.
this year, in the snow i had my vredestein ultrac sessanta's grip was greatly imporved, i had for more traction, the car didn't fishtail at anything over 40mph which the bridgestones did.
example 2.
wet weather with the stones the car never felt as planted, (this is everyday driving) wet weather with the sessanta's, i have far more confidence in the corners.
point being made. if i had sessantas on the front and stones on the rear, or vice versa, i'd more than likely be in a new car. or if not that then i would be driving the car to its potential ( and i don't mean like a boy racer)