I also like a very glossy neck and some of the instruments I have bought didn't come that way either.
My solution is to use a very high quality carnauba paste wax and just rub it into the neck as firmly as you can - using your fingertips and a very small piece of soft cotton cloth like an old tee-shirt to generate a lot of pressure when you rub rapidly up and down the neck.
'
Carnauba' is a real bean-wax and it is very hard. '
Carnuba' is a chemical compound of beeswax and other jojoba bean wax and is not nearly as hard.
Naturally, real carnauba wax is kinda expensive - not from any rarity situations, but the machines to make the wax into a paste require lots of passes with hard rollers to grind the wax into the smallest particles so they can be carried by the vehicle (solvents) in the wax compound.
I can get some really nice finishes from this wax and it lasts for years.
OK -- the products I use are called:::
1)
Mother's California Gold, Phase Three. This has NO cleaners or abrasives and is just wax.
2)
Meguire's Mirror Glaze #26. Again, a pure wax with no cleaners or abrasives.
3) Meguirer's also makes a liquid wax that is very good but not as powerful as the pastes (above). It is their
Deep Crystal System Step #3.
You can buy all these products at any retail automotive parts house or Pep Boys, Wal-Mart, K-Mart, etc.
I don't think you can tell a glossy urethane neck from one that WAS satin after this treatment.
Just remember to apply it with a lot of hard fingertip pressure and rub fast to generate some heat. It will burnish into the finish that way and it's gonna become as glossy as you want and you get to keep the bass stock and unchanged that way.
I think you'll be very happy.
