Yeah... CRTs will never have perfect geometry. There's a certain logic to having a curved screen so you can say "F it, I'm not even trying for perfectly square geometry".
But I still think my commercial 27 inch Sony Wega from the mid 2000s had a more geometrically perfect image than my Sony PVM from 1990.
I'd take a PVM over a commercial CRT any day of the week, but I'm curious how a latter day flatscreen PVM might have looked... might be more what I'm looking for. I don't know.
Well, I guess they can - in the previous thread, many gaffers posted pics of their CRTs, which seemed to offer a reasonably 'perfect' geometry - you just have to be very lucky. Or not as anal as I am, unfortunately. XD I must say, it's nothing that prevents me to enjoy my retro consoles - I really believe I'm squeezing out the absolute best it can do, with my actual Trinitron - but still, I can't genuinely unsee those issues, nowadays.
And that's the reason why I'm dying to get my hands on an OSSC. I gave up with PVMs - in my area, they come stupidly overpriced, and often in pretty rough conditions too... Sellers don't seem reliable, in general - and I'm honestly a bit tired of going through the usual effort of getting a new CRT set, tossing out the old one, just to discover it still has the same problems, only placed differently on the screen.
I should probably go 'nevermind' and keep trying - there's a nice Bang & Olufsen set which is on sale near my town, but it's 190 euros on the one hand, and even worse, it's too damn big for my retro corner - but then I think about it again, and... I just don't feel motivated enough.