Hiya Moley,
No, all my settings have the tongue centrally located on the trigger bar.........i think the tongues have slid that way as i pulled the moles headfirst from the runs, or they have moved that way during firing. You are right it would be folly to set the tongue towards either end as, like you say, if the mole approached from the other direction it would produce a foul catch. I suppose i could have moved the tongues to the centre again for the purposes of the picture, but i wanted to show them exactly as they were pulled from the ground with no doctoring. Thankyou for your observatio