I was really waiting for a reply — thank you as always, Martin! This is looking so so much cleaner and good now.

Okay, I get it now… sometimes I just blank out and forget simple things.
So basically, we’re mirroring the part, then adding thickness with Solidify (which creates another edge), and after adding Subdivision we’re just smoothing between those edges — kind of like a bevel, but without creating unnecessary polygons.
But I’m running into this issue.


I tried fixing it this way: after applying the Mirror modifier, I added two vertices, connected them, and created a diamond-shaped quad as u yesterday told me — which fixed the issue.

Another way I tried was just merging and deleting unnecessary vertices, which also solved the issue and avoided those extra polys. (Thanks for reminding me about that yesterday, Omar — I really forget stuff sometimes.)

But is there any other, more optimized way to solve this? (Something cleaner than these manual fixes, even though it’s not exactly hard manual labor.)
Thanks as always, guys! Without you guys and this community it would have been so much tuffer.