And with these blades you'll look like you went 12 rounds with Mike Tyson, lol.
Hmm...wouldnt know what to look for but I can start to do some research. Last time I used one was 20 years ago when I worked in the watch and jewelry department of a department store where I grew up in Toronto.What setting do your use your slims on. That will help to know what type of razor you'd hopefully agree with as a backup.
Edit just saw you use setting 1, 2 or maybe 3 so Gillette tech would be good match or a Gillette Superspeed. But tech would be the cheapest as there seems to be 100 million out there. Probably the most abundant razor from gillette and cheap.