I had a couple of tucts of Dorco New Platinum ST 300's and they were decent blades, not the best, but not bad for the price. So I bought some more. The wrappers were identical, or so I thought. After shaving with several of the new blades, they are horrible. After closer inspection of the packing I found that the first blades that were usable were made in Vietnam, and the second one's that I bought were made in Korea. Anyone else notice this?