I made mine 5 link. I don't find them to be any less traction, in fact I think they actually cause better traction. The cross link is just there to scratch out the slippery surface of the ice/snow and give the rubber tire lugs a good surface for traction. If the surface is good traction for the rubber, then more cross chains just get in the way.

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Sorry to disagree but your logic isn't accurate. The cross link provides all of the traction. The rubber is just a method of forming the chain links and applying their traction to the drivetrain of the tractor.
2 link chains aren't twice as good as 4 link, but they are close to that. Then factor in the ride quality and they are worth the cost difference.
I doubt that many posters here ever wear out their chains. But if you do, then 2 link chains will last considerably longer than 4 link because of decreased wheel spin.
I run 2 link V bar chains on my JD2210. It will not spin the rear tires more than half a rotation before killing the engine when on my snowy/icy gravel driveway. That kind of traction can't be duplicated with 4 link chains. And that's the type of traction I'm after.
As to the five link idea. If you use your chains hard and expect long life it's not a good idea. If you look at the picture, every other cross chain is hooked in the wrong side link. The side links are intended to run with one link flat with the side of the tire, the next link cross wise with the side of the tire, etc., etc. When you hook cross links in an odd numbered spacing every other one is pulling on the side link wrong. This twist will eventually wear the side links to the point they break. Again,,, I'm talking about hard, long use. I run a 250hp 45K lb grader. If I tried that my chains wouldn't last more than a couple days before they started breaking the side links.