Rockfall prone Windshield?!?

Moin, moin zusammen… a question to the other SLK drivers here in the forum: How many stone strokes have you had? I have had my SLK for a good 1.5 months now and have already had the third stone blow in the disc. in the 16 years before I didn’t have a single one. I usually drive exactly the same track to work, I rarely get over 130 / 140 (doofes tempo limit), so also no more than with other cars before it… Do I just have bad luck or is the SLK’s disc here More vulnerable than the other models / brands? Greeting Michael