POOGA why would bills with same prefix seem strange I personally pick up mpney from the bank and get many of the same prefix and if the have new bills then get full stacks of same prefix. And how many of us do not have stealth bills out there. I use to have lots when I took the time to record every serial number before I put them into slots now I do not even bother I just send them on their way unmarked and not entered. I have hit many unmarked yet entered bills during my time on this site and am surprised to see the hit but not suspicious. Heck I use to go to the royal bank and cash a cheque for $5000.00 and ask for it all in fives. At the time they were known to have new bills so those complete stacks would all be same prefix.