If you compare the Dumpster Mutts variation, (excluding the Mod 7), you'll find the LE and Double Cut to be the most similar with the exception that the LE had the old Busse Basic handles. Both are .25" blade thickness, and both have flat ground blades.
To contrast, the original Mutt (epoxy coated) is .285" thick, has the old Basic Res-C handles, and is sabre ground.
All are SR-77.