To polish or not to polish.

Noooooo.    No, no, no, no, no, no..................

You do not wanna mess with your fret board in any way other than cleaning it gently and a bit of fret board oil if it's dry.  Putting any kind of wax or polish on it that is meant for furniture will just gum up the grain of the rosewood.  It will also prevent it from breathing freely.

My old boss (God rest his soul) used to have this really high end furniture made of Teak and Rosewood. He had it for over 30 years when I first saw it.  Looked pristine.  He told me he would never wax that stuff.  He said when it gets cleaned, it just gets dusted and then a nice coat of some really high end lemon oil blend that was made for wood.  He was old school and new his stuff about taking care of stuff.  He said you never, ever wax or polish high end wood unless that was done to it right off the bat when it was made.  And he wasn't even talking about guitars, he was talking about furniture!  lol.

So, again, no.  No, and .....um......no.  Don't do it my friend.  Stick with fret board oil, and even with that, you only need a little bit cuz like the saying goes, a little bit goes a long way.  Over drenching and soaking your fret board with even good oil too often can soften it and lead to it acquiring dents and divots etc over time.  You don't want that.  You want it to stay hard and do the job it's meant to do.

Just my worth with maybe an extra buck thrown in. 

I used to use the Dunlop fretboard oil, which is mostly mineral oil with a little lemon oil for the nice smell. For the past couple of years I've been using Howard Feed-N-Wax. It was recommended by a luthier. It has orange oil and bees wax, and whatever. You apply it and leave it for 20-30 minutes to soak in. Then I scrub the whole fretboard & frets with 0000 steel wool. The completely wipe everything off. No residue. No shine. Since I use Elixir strings, I change strings every year or so, and clean & oil the fretboard.

El Gull,
The plan is nearly foolproof, but good effort.