Those are the sizes I use–from American Coaster, right? I’ve also die-cut the 4″ square ones to 2.5″ and 3″ circles. The thickest ones seem to crack under all but the largest plates, so next round, I’m ordering medium . . .
I just printed on coasters for the first time last week, which I ordered from Amer. Coaster. I have the thickest weight and luckily they printed fine, but I was also warned that they could crack. Think I’ll get the medium weight next time.