What we've got here, is a kiridashi married to a US construction worker's dream utility knife. Some men, you just have to teach. So we get what we've got here today-
damn, dude, that's a nice knife! 2 things I'd consider as possibilities- adjust the angle on the "straight" edge to go up 10-15 degrees instead of down. that gives more finger clearance when working close to a surface. 2: I, personally, would reduce, but not eliminate the belly curve. Just about half the curve, perfect.
Now, why? Because this is a carpenter's dream knife. People talk about chiseling and scraping, both very true, but you also can use it to score, cut, mark along a straight edge, and crease for folding. having a dead flat rear side to the blade makes things in detailed measure carpentry sweet. Really sweet.
I love it!