Sorry I cannot comment on other blades which work, however I have a 2011 Ford Edge, and I had a bird bomb on the windshield. In my haste to remove it, I sprayed the windshield with a hose, and used a car wash brush to remove the bomb, however it was stuck on pretty good, I figured it's glass and used the edge of the car wash brush to scrape it off, and while I got the stuff of, it left a whole wack of find scratches on the windshield around 8 inch's square... I've been living with it for a while, I guess it will take a windshield replacement to fix it..
Just wanted to comment your not the only one with windshield scratches, not sure if its soft or normal.