Ive been backing and laying for over ten years as well below the minimum, i dont know how betfair work it out, wether it is per market or per selection, if you add all my bets up per market it comes to well over 2 pound minimum, as mark said there is a way to place small bets still in the settings, it works really well, if your laying every greyhound in each race for a pound i dont know if they would cosider that a six pound stake