I haven't had the chance to really trap hard for a couple years, but I have always been fond of the DLS's simply because they're easier for me to stabilize in the bed (trade-off for having to knock out a bigger hole), I can install a makeshift tension device beneath the pan that is more reliable than a tension screw on a CS, the longer "lever" of the longspring, versus the coilspring's lever, makes them lock shut much better. I discourage the use of any CS that isn't retrofitted with baseplates, four coiled, and laminated OS jaws for any terrestrial predator trapping. Just my humble opinion. But, does anyone know what the BMP's are coming up with on this matter? BTW, I came to be very fond of #2 coils, baseplates, several swivels, 4-coiled with #3 springs, and OS laminated jaws, twin-pegged in every case. Excellent setup for 'cats, and will hold the biggest coyotes in my area without slippage or foot damage.