I didn't mean to seem insulting nor dismissive
You are entirely correct,
however...
Most divers I see, who think they are correctly weighted (holding a SS with zero air in BCD/wing) are still over weighted
They are not breathing correctly, generally using the top half of their lungs, thus compensating for the extra buoyancy with extra weight
Holding a stop to within +/- 0.2m (1') isn't magic, its down to correct breathing
When teaching OW, I'm always significantly over weighted, so have a large bubble at the stop, yet I can still maintain it, even while concentrating on students and not thinking about breathing) Because I'm using my lungs effectively
If on your next dives, you concentrate on breathing correctly I'd be surprised if you didn't find yourself slightly overweight From there you can make an educated decision as to how close to ideal you wish to be (I prefer to often be slightly over so I could hold a stop "on fumes" if reqd.)