I sharpen all my knives to around 12 degrees per side, 24 inclusive, and use this for chopping maple: Randall's thin 0.020" edges will withstand, without any damage, an infinite amount of chopping maple, even at this angle and thinness: The RJ Martin in S30V had a much thicker 0.040" edge, more open to 15 degrees per side or more, and it immediately showed some tendency to wire edge in the wood...
There are mitigating factors that require further testing: Thicker edges decelerate harder and may yaw more while chopping, which raises the stress on the apex: Ironically, thinner edges at sharper angles may be more stable in the wood when they hit, decelerating more gently, and thus overall looking "tougher" and more "damage proof"...
Also the S30V knife's combination of sabre grind hollow grind and thick edge showed some tendency to "glance" in the V, which may have caused the rapid edge damage.
There is also the fact the S30V knife was heavier by 50% than the 440B Randall Model 12, so there was more energy available to cause edge damage: The bigger knife did out-chop the Model 12...
But this can be put in the following perspective: The Model 12 has had thousands of chops into it, and never exhibited any edge damage other than slight dulling, while in just a few dozen chops, with a thicker edge and a more open angle, things when south immediately for the S30V knife...: Not an absolute proof of the inferiority of S30V, but definitely not an indication of superiority to say the least...
I did have a similar 440C knife (to the S30V RJ Martin) by top quality maker V. Neeley, and that 440C was the worst 440C I ever experienced: Even with an edge 3 times thicker than the Randall, its edge immediately crumbled in several different ways, just on chopping wood, and despite over 15 per side angles...
440C is very difficult to heat treat properly, and it is known to be unforgiving. Plus it is made in a large variety of places, so unless you are careful about the source, it can be all over the place in "cleanness"...
The idea that 440C is inherently a second-rate material is just laughable: It still has many industrial applications for which there are no substitutes, is know to be among the most shape-stable of all steels, and in at least one edge-holding test I saw sixteen years ago -the most comprehensive I ever saw in terms of methods: all purpose-built blades- it put the new generation of powder steels to shame, including CPM-3V. The only steel that even came close was D-2, and coincidentally that steel is also for me the only one to match Randall's 440B "unkillability" at thin edge angles on wood...
I have long lost all interest in "super steels" since... As was abundantly demonstrated, almost none of them offer anything that can reliably be perceived by a knife user. I won't go and outright say they are not close, or even the odd one very slightly better, but I would always choose 440C over all of them if any choice is available...
Gaston