I wouldn't use them in water with a lot of current, as I think their touchy trigger would be prone to set the trap off, but I don't plan on using them for water sets anyway. I plan on using them on land where they will get a covered with snow in wolverine boxes, and I want the wolverine dead every time one sets the trap off, very soon after being caught. Wolverine are high dollar furs, so selling a wolverine for $300, and only making $255 because you used a Sauvageau or $265 if you used a Belisle, is a lot better than catching hair, because a wolverine pulled out out of a trap with weaker springs or a larger gap between the jaws when it's fired, or having one that's dead, but worth a lot less due to struggling for a few minutes before dying and breaking guard hairs off. Wolverine struggle more than land caught otter in a trap. I had an otter get caught in a #330 Belisle I had set on top of the ice guarding a hole that otters had been using to get under the ice, and it got suitcased, managed to pull it's head out due to having a fat butt, and went almost 100 yards away to another hole before expiring (Had it attached to a 10 foot drag pole due to their being nothing in the snow or ice to fasten it to.). That Belisle held it's butt though. Not many traps would have done that. Trapping otter on land in snow and wolverine is a whole different ball game from using conibears in open water or under ice, where the animal usually drowns if it's not caught very well; when you're trapping on land, the trap has to kill them, and if you have a weak trap that can't kill a wolverine or otter quickly, you have a good chance of damaged fur, or worst case scenario, a pull out. If you've ever skinned an otter or wolverine, you know how thick their neck muscles are. Most of the holes through the ice around here are too big for a #220 or #280, so I use a #330 for otter holes. My trapping partner and I caught two wolverine last year, both in #280 boxes. One was caught in a Bridger perfectly, right behind the skull, and struggled for a minute, possibly two before expiring, thankfully with no damaged hair, and the other was caught in a Belisle, again right behind the head, but didn't even take up the slack in the cable, it expired so quickly. I think #280's are the perfect size for otter and wolverine, as it will usually catch them right behind the head, but many times the ice hole the otter are using is too big for a #280, and several times last season wolverines circled a conibear box, but wouldn't put their heads in a #280. Going to use these Sauvageau 11x12's this coming season if that happens again. Hopefully the bigger opening will entice them to stick their head in.