How Rough Should the finish on a Pizza Peel Be?

I have read over and over that you want a rough finish on a wooden pizza peel for best results. But other people seem to state that it is simply the moisture absorptive nature of wood that causes wooden peels to work better.

I purchased a cheap wooden peel with a slick shellac like coating and would like to fix it, but I am not sure how rough (i.e. what grit sand paper) is optimal for the surface of a peel. Has anyone ever done any tests or have any experience with different roughness’s to find the optimal finish to put on a peel?

Quotes:

A wooden peel tends to have less problems with sticking as the wood is rougher, absorbs water and doesn’t get condensation. – https://www.crustkingdom.com/how-to-use-a-pizza-peel/

"Raw," unfinished wood peels have a rough, porous texture … they actually tend to be more nonstick than coated peels. – https://www.businessinsider.com/best-pizza-peel#wood-versus-metal-pizza-peels-7

Here is a post written by a profession who apparently uses peels so rough that their employees get splinters – https://thinktank.pmq.com/t/wooden-pizza-peels-to-sand-or-not/15723/2