When working on 3D models of aircraft, that typically are more or less cylindrical, I often accidentally end up with ugly looking bumps where one or several vertices apparently have ended up slightly in the wrong place, which shows up as that location being shaded clearly differently in the 3D view: (This particular mesh is not completely my own work but based on a suitably licensed model from Sketchfab. But, infuriatingly, the bump seems to have been caused by my (as such, I think, necessary) editing...)
Any hints how to solve this? I have tried moving the vertex that seems to be the problem minimal amounts in or out, but it doesn't help. Should I just redo the problematic part of the mesh while it still is this "clean" (before I have started doing any texturing, adding various smaller bits and pieces that the aircraft has on its surface, etc? Start with a perfect cylinder and then very carefully use the scale function on the vertex loops to modify its shape as needed. Is the key to smoothness to never touch individual vertices "manually"?
Or should I even, gasp, go full programmaing nerd and use code (geometry nodes) to generate the mesh?