i did same thing to my traps at first, it wasnt bad but you could see daylight between the pronges. i think it was because i was using the setting pliers too close to the coil of the trap and the trigger is 35mm at narrow part but i was opening it too far like the trigger was 45mm. now i open them so the trigger goes in comfortable but move the setting pliers up the trap closer to the trigger putting less strain on the coiled part..