Problem models

Depends on how frustrated you are. In my case if I'm thinking of putting it away I do. I rarely get good results when I'm mad. 

If it's only the tracks and your happy with the build,I would order some AM tracks and finish it up when they come in.

I usually slog thru a kit,I don't want to start a shelf of doom.

I have been known to trash some really bad disasters after stripping them for parts,but not a lot.

"Shelf of Doom". . .I like that.

I'm almost at the mad stage. . .