If they lost any animals, which I'm sure they did. It wasn't because of not having modified traps.. No-one bats 100% in this game.. JMO
If all they were using was #4 dbls I'd bet lack of lams cause loss atleast on fox. I may not have been around that long,but long enough to know what a trap can do. And your right no one bats 100% but there are things you can do to get it close and mods are just part of the equation.Why do you think traps like the MB750 or CDR came out,trappers were looking for a better performing trap.
I know alot of trappers are set in there ways especially when it comes to traps or mods. Call it PC or whatever but many who went to mods have done so because they've seen improvement in function and durability. Like I've mentioned earlier, I've seen many post on here about trap failures. What I don't understand is,if a trapper is going to take the time and money to set a trap,why would he use a trap that may not hold an animal. I mean if a trapper is trapping for fox using 1,5's and theres a possibility of catching a coyote,why would you set a trap a coyote will often times get out of or completely destroy. I mean if your going to do it,do it right the first time. I didn't have internet when learning through the years and learned alot the hard way. Maybe I just have bad luck with coyotes in years past trashing un modified 1.75's or coon leaving me toes in 1,5 Blake and lams. What ever the reason,now days I have less problems. I can reset a trap after a catch without having to bend something back into shape or replacing it with a new trap maintenance. All I know is what it was like using just stock compared to now,and I will not set a stock trap anymore. If others want to learn the hard way sobiet,sometimes that's the best teacher.