Alright, I'll make a fool out of myself and tell you the truth about the difference between CS and HI.
The CS is like it's been untouched by human hands. Maybe it's been laser or water cut, drop forged. It's mass produced with every one the same as the next. Sterile.
The HI is made by kamis who may have families doing smithing back 10 generations. It may be made from a coil spring or a leaf spring hammered by hand into a billet. As he pounds it into shape, something of his heart and soul goes into it. He doesn't understand ergonomics if you talk to him, but has 20 or 30 years experience making khuks, and knows how to make one that feels right. Somehow his sweat and blood become part of the knife. Each of the HI khuks is marked with that kami's mark and/or initials.
A knife marked with a crescent moon and initials "L.B." means it was made by Lal Bahadur Bishwakarma, the maker of the former King of Nepal's Banspati ( willow leaf )Khukuri that sat on the throne in the King's absence when the king was out of town or the country. He is also the HI Shop foreman.
When one of his knives makes it over here and you pick it up and hold it in your hand, you may feel something you could never feel with a production line piece of cutlery. Somehow it seems the khukuri picks the purchaser. That it was meant to be yours, somehow. That there's some spirit or soul within the knife. That there's a preternatural bond between the two of you. If you listen it may tell you it's name.
Ah, forget it. It's all a bunch of hokey malarkey, except, why did so many folks give their knives and swords and flintlocks names?