Lynn Ellsworth has been in the process of making a bass for me for well over two years. It's a Ric-inspired build with a mahogany body and zebra wood top. Lynn recommended a matte oil finish, but I just couldn't do it. I had to have a gloss finish to show off the wood and the bass. (Sonically, I don't believe it makes a significant difference, and I base that on the great tone I get from my current glossy-finished basses.) It's actually getting painted right now, so the end is in sight.
In the case of zebra wood I would have gone gloss all day long. It has a lot more contrast in the grain. I don’t think there’s much to say about tonal differences unless you pile on some massively thick coating. Being that this also will be without a pick guard I wanted to see if it would tone down my normal wear and tear areas. Since Warmoth uses satin poly and not nitro it’s supposed to be just as durable whether it has gloss or not. Also to remember it’s satin and not flat. There is still some sheen there.