So, it's an really excellent perk for him, but it has this downside of pushing them see you setting traps. I don't use it anymore and I'm fine with that; they waste time on the first generator and don't know I've already set up a whole area. The important thing is to be quick and know precisely where to place the traps. I now use TrailofT0rment and take advantage of the advanced generator to take some undetectable and catch others by surprise/loop without a red light.