I have been experimenting with dumps the last few weeks after getting an MSR605 and have only been able to hit gas stations, fast food, etc. I have tried a few chain stores to purchase items around a few hundred dollars and out of probably 20 valid dumps have not had any success. Gets declined every time. Used a card today for some gas, declined at a store for $100 giftcard, but still worked after for gas again. I am writing onto a few EMV cards in my name I jammed the EMV chips on so using the 3-swipe method and am also purchasing dumps in my geo location. Any help would be great.