Hello together, with my new old man already winter tires have been mounted and I have some questions about it. The front tires are from 2006 (Conti) and have still about 5mm profile. The rear ones are from 2013 (Conti) and have about 6-7mm profile. Have looked at the front as exactly as it goes as layman and have not discovered any cracks or the like. Do you think I can still drive the set this season? (Living in S-H, rather mild wet winter) Or should I prefer the front one because of age. Since there were no summer tyres and I would buy them again in a few months, my consideration was also whether GJR would make sense, what do you think? Drive about 15,000 a year Car is an E-Class Bj 98 Thanks already