It would be interesting to test a Randall sawback: Many more people have one of those than have a Cox...
This is one with an unusually functional-looking sawback:
Notice each teeth is alternatively "bent" offset to one side, to alternate a broader cut path away from blade's side friction (which is how I am told real wood saws are done)...
Edge geometry is not quite there for me, but it definitely is an interesting sawback concept...
Apparently the best performing sawbacks for wood are the Martin Knives MCE-II style, which is basically an oversized "Lile" pattern on a similar Full Flat Grind blade...
A Parrish sawback mounted on a Full Flat Grind blade would be a first, and would really be interesting to see... The Martin Knives "Apparo" concept of a large fuller to reduce side friction is clever, but only if it is combined with a deep Sabre Hollow Grind: Using a Sabre Flat Grind kind of misses the point...
Cutting on the push is inferior to the pull, no matter what is claimed about this, but I still generally prefer a "push" saw to nullify the "entanglement" factor... For a soldier's knife, a push stroke saw is a must to ensure repeat stabbings... Other than that, I never found any great downsides to sawbacks, no matter how ineffective the design, except when they weaken the point...: Even the alternating slant TOPS design I found quite acceptable in performance, being about on par with a Parrish-style saw at 1/2"-3/4":
Gaston