Polish to increase incoming velocity have seen plenty of TBs this way...Looks great. I read once, and I don’t know if it’s true, but someone said that a textured surface was better than polished, because it allowed the fuel to evaporate off of the walls faster. I don’t know, could be true. Maybe. Get the sandpaper out...lol!
You always hear of people polishing things though.
Is this what you meant: