I don't redo any models. That is my story, and I am sticking to it.
Except (you knew that was coming), I did let the late Jeffrey Harrison talk me into refurbishing my first model, using old methods. And I did have a couple of jets that just bugged me for no reason, I would look at them and wonder what was wrong, I just couldn't see it. Then one day I realized that one of them had an unfinned drop tank on backwards,,,,,and the other one was facing correctly. I have no idea of how that slipped past me during the original build. I went ahead and fixed that. When I was placing that model back in the display case,,,,,I glanced at the other culprit. It had two MERs full of bombs on it,,,,,the port side (towards the viewer) was fine, the other side had no yellow stripes on any of the six bombs. I must have been in a hurry during final assembly. I painted up some more bombs and glued them on that jet.
But, as for "the red doesn't look right" on my VF-31 Phantom,,,,,,I don't fix those things. Most of those older models were built with kit decals or the aftermarket that was available back in that day. I just build today to the best of my ability and move on. psssssst, don't tell anyone, but if there is no current decal available for a squadron, I just go ahead and use the old decals from sheets I find in the collector's stores, even if they are yellowed a bit,,,,,,,,,,I figure that if I built it when the sheet was new, it would be as yellowed by now as some of my models built back then are, anyway.
Rex