Date Saturday, 11 June 2022, at 9:55 a.m.
What is not straightforward is achieving high hardness while preserving toughness. David has this tradeoff optimized the best I have seen in his chisels as judged by regularly using them to make stuff.
While some choose to, now days it is not necessary to be concerned with ease of sharpening. Modern abrasives easily sharpen anything.
How we choose to work and what is judged important will lead to different chisel (and knife) choices. David's chisels are my go to chisels, not from how they look, but how they perform.