Odd that you wouldn't have had action yet if the 110s were in front of active den sites. Can you see a "path" in front of where you have the traps set? Active holes will commonly have a 4-6" wide lighter colored path in front of them where the muskrats swimming by have removed some of the mud/debris from the bottom. Water will quite often be cloudy right in front of an active den also. May want to look around to see if you see any other holes with signs of activity in front of them. Otherwise a slice of apple might tempt them into a spot they wouldn't normally go smile