Forgive me for sounding stupid here, but when you say that you "buff out" the dressing, what exactly does that involve?
Just take a MF cloth and do a final wipe to even out the finish and maybe remove little gloss and extra product.
You know, I've never even tried 303 Aerospace. Which is weird, because it seems everyone has it. I like the versatility of 303 compared to 1Z CP (you can use 303 on exterior surface as well), but it has too much sheen for an interior dressing for me. I just prefer the matte clean look.
I just tried 1Z Vinyl-Rubber Care today, and I like it a lot. It's got an understated look to it, like 303, subtle, but you know it's there. And it smells great, too. I think it's my new favorite for when I want a dressing that adds a little something to the appearance of an interior.
I'm surprised there's no mention of Optimum Protectant Plus. I prefer it over 303 because in my opinion, 303 isn't really matte.
My faves in order would be: Scholl 9000 (the best I've used and I keep that for my own cars just like their QD best I've used and keep it for my own cars) Jeffs Werkstatt Satin Prot CGs Silk Shine