Paul810, to be honest I'm not sure. They are all excellent knives made pretty much by the Busses and the quality is just about the same across the board. SWKC (Scrap Yard) will be the cheapest followed by SRKC (Swamp Rat)and then Busse will be the most expensive. I would venture to say that Jerry Busse (Busse combat)would be the toughest followed by Swamp Rat and then Scrap Yard, but that's only speculation and I've seen destructive testing of Scrap Yard knives and it's very impressive (One tough knive) You can't go wrong with either of the 3, I see Swamp Rat has a Mini Uncle Mojo w/Logo in stock right now and I decided to pick one of those up to replace an old benchmade. Also the blade forum sometimes has a lot better info on it plus testing pics. I seen a test of my cold steel Kukuri which was the first to fail in a test that snapped the blade.


Mojos
Blade Forum