Sounds like the sets will definitly get some attention, but you need to understand that a 1 1/2 isn't a coyote trap. When making a set like that you need to use the strongest trap you can. I have held coyotes in 1 1/2 coils, but that was only because the trap was beefed up and the coyote couldn't get any leverage to pull out of the trap. 1 3/4, 2's and 3's are your best bet for coyotes. Of course 3's are a little to big for fox, but they will work. Hope this helps, Worm.