Grind edit number 2. I found that the gaurd on the spine was limiting when using it as a kitchen knife, and that the small choil surrounded by a square ricasso felt very akward when choking up on it. I would personally prefer it to be sans choil and have the edge go to the handle, but thats why I have kitchen knives

And I'm sure that the original purpose of the double choils was for lashing purposes rather then to funtion as a "choil". It feels like it was made for throwing
Given the configuration that I ground it into, it does alright choking up on it for the purpose of kitchen work. The main 2 places where this knife falls short is that the edge is positioned closer to the handle then you would normally want for a kitchen knife, and the hollow grind leaves a very distrinct ridge between the main bevel and the cutting edge bevel. were I to want to use this more as a kitchen knife, I would flatten the ridge and make it more of a zero edge configuration, thinning it down from .042 to about .025. That being said, it does alright

. It would do decently at general chopping and cutting tasks, with a long edge with lots of belly that lends itself to kitchen work. again, can't beat the price for a butter spreader.
That being said, In its original configuration I'm sure it would do well at whatever it was originally intended to do. I personally never intend to use it for such things (pig sticking etc), and Have always felt very unsafe using double edged blades while chopping and doing general cutting chores. They are cool, and at 25$ each I'm willing to buy them just because their cool - but as functional knives The designs are a little lacking for me. cheap means of easily modifiable knives though.
They definitely aren't heat treated like the machetes wich readily burr like they were made of clay, these actually resist grinding a little. I would say they are probably in the mid fifties, where as the machete's I've handled have been upper 40's to low 50's.