Aye pal each pile is the soil it’s got from digging its tunnels, so usually a tinnel joining all the mole hills, set traps, an usually lift them 48 hrs later mate don’t need check these as they kill instantly if set properly, charge by the mole on these jobs. If i set a number of traps I atleast expect there to be half that number in moles, so set 2 traps for each mole, 1 as a back up trap, get nice surprises some jobs tho sn can have as many as 75% of the traps have caught, an often, especially this time year ye start getting doubles, 2 moles in a trap, there the good ones haha 20 quids worth