everybody seems to like them big loops ... not me ... 8 inch loops are a plenty most of the time ... set like buzzzzzy said at the approach ... if'n you do it right you'll have you a neck snared beaver & keep him in the water where he'll be less stressed until you arive ... or you could set it up on a drowner ... options galore

only time i'll run a big 10'ish inch loop is during summer nuisance beaverin where otter potential is likely ... lets the otter slip through 90% of the time while still catching beavers
if your setting on a steep bank slide ... make sure your snare stays 90 degrees to the trail/slide surface ... if not done this way they'll plow'em over too