since the traps are fairly cheap, the wisest thing to do is also get the Talprid worms, they are like 20 bucks tho (for 10 i think), place the worm, inside the jaws of the trap.... even if the traps miss, the worms will kill them... Victor traps are 5-7 bucks a peice... so spend 40 bucks, and your problem should be solved for years (they will come back, but you will have the traps and left over worms)....

if your close to me, i can come set them up for you... we used to get paid for each mole we brought in when i was doing irrigation/landscape maint and construction... pretty easy once you figure the little bastards out...