At 300 ENTRIES PER DAY your telling us that every bill you spend is marked? I no longer stamp 100's and am reluctant to stamp 50's as people still look at those notes carefully (many would not know what a counter fit bill looks like but they still examine them). The volume of fives I enter it is a pain to stamp them all and you enter almost double my entries. To me stealth bills are much harder to receive hits on ,however when they are it is sure sets the other trackers off. They do seem to move around in the cash flow stream much easier. Marked bills seem to be pulled from the stream and sent on their own path. Some bank employees get upset when they see marked bills , while other do not care. A persons agenda for being on this site varies with each Tracker. I came and stayed because to me it is a game , other for research and other for stats, regardless of why we came and why we have stayed this site is part of each of us. KEEP SAFE & HAPPY TRACKING.