I paint them, they look so much better and adds such a small amount of weight. Painted the entire inside of my Diablo, grey primer followed by stone paint and it added a total of 3oz. And that includes the inside of the canopy. It fuel proofs everything and makes it so you can clean up spills when you have them.

In planes with a radio tray (the Diablo doesn’t really have one) I paint the radio tray gloss white. It’s a really nice combo with the stone paint, again fuel proofs it and it brightens up the inside so you can see in there.

They always get a ton of compliments at the field.