obviously while declare your point of view you will push me directly to your solution ))
I'm not trying to convince you of something; I'm just saying that ergonomic layout decisions, should stem from the natural positioning/movement of the fingers/hands/arms.
I illustrated how a 0.5u symmetric row stagger is ergonomically suboptimal, especially for a flat keyboard, but like I mentioned, different keyboards and people have different priorities.
finally I can conclude that overall idea and/or layout not so interesting for the community.
Again, I'm not trying to push or sell something. I'm just documenting my thoughts in case they are helpful to someone else. You find it uninteresting, someone else might not.
PS: There is this mental trap called the
sunken costs fallacy, with which I am unfortunately all too familiar. Just because one devotes a lot of time/effort/money into something, it doesn't mean that it's right or that's it's too late to change course. I'm not saying that it necessary applies here, just something to keep in mind.