So I have this unfortunate line from my stain in some of the vertical boards. It's front and center, so I want to fix it. My only guess is that this is from when I was sanding the joint where those boards meet the top horizontal bar. Must not have hit it well enough with 120 after in the direction of the grain.
Is my best option to sand, maybe 120 grit, and re-stain just those vertical boards? I would imagine I need to wait until the stain is 100% dry.
Update:
First pass at fixing came out well. Need another coat to darken, but I'm fairly pleased. The very edges of the vertical boards have some extra darkness, but I actually kind of like it. Kind of looks worn old or something. Managed to sand a tiny bit of the horizontal boards despite my scrap wood protecting the edges. Sanded those with the grain just slightly and added a little stain there. Seems to have mostly covered it.