It is fun to see this Pono Baritone thread re-surface. I am a Pono fan boy ... just love the Ukes and brand.
Like my friend Rainer, I am VERY happy with my Spruce top / Rosewood back with cutaway Baritone. It has a wonderful projection, sustain and yes, it is brighter ... but I have wound 3rd and 4th strings on it with nylon 1st and 2nd .... and it tones down the over brightness that might come with Spruce. But it is Engelmann Spruce which is similar to Cedar.
The gloss on the neck is no problem at all ... easy to move, not over done. Really great ... on all of my Pono's.