Not when you 4 coil them. I do belive that it increases holding ability as you have a wider surface.
Another note: Center swiveling the traps positions the foot in the top center of the trap as well, which is where it is easiest to pull out.
Its all for the comfort of the animal, and strenghtening the trap so it will hold up to what the critters throw at it. Laminations and center swiveling do nothing to help the traps holding power. IMO!
I disagree. Center swiveling allows a much more easier swiveling action with NO binding compared to the corner swiveling thats standard on most traps. The wider jaw surface is not smooth it is more like a washboaed and has grooves that conform into the foot which I believe helps hold and prevents slipping. I have yet to see where a center swiveled trap has lost a full pad catch, Toes yes, but you get that with any trap.But I've held more toe catches with laminated traps.
I never said they are better if left swiveled off the corner but dead center it where it is easiest to pull out.
BMP's are political bologna that sooths the minds of AR's and people on the fence, like cable restraints. Not that I'm saying that's bad but that their recommendations are taking into consideration the whole picture, animal comfort and all, not just the traps sheer ability to hold the catch, which is what this question pertained to.
I believe a trap left stock if it doesn't pull apart will hold critters just as well as a fully modified one. There really is no in between. Once you start adding mods you'll need to go all the way. Laminations require stronger springs, stronger springs, leads to base plating, base plating most often leads to center swiveling... all stuff most non-professional trappers will never need or even notice a different in catch holding ability.
(note the avatar)