What polish/cleaner to use on a nitro finish?

I have been using Pickers Pal and finally through it in the trash. The instructions say to apply and buff after it dries. I don't know what they put in it but it doesn't really dry unless it sits forever. I'm looking for suggestions for something that will clean sweat and grime off a nitro finish and buff to a nice finish. Any suggestions are appreciated.

You really, really need to look at what is used on top end car finishes. Google "automotive detailing". There is a lot of stuff out there and it works.

I'd try using something like Britemax #4 Black Max especially on a dark finish. This stuff so ultra fine it can and will remove 4500 grit marks "hologram". I reckon it can polish optical lenses.

Use with care because it does have a deceptively high level of cut, you can go clean through the paint with it. Best used with a "dual-action" or orbital polisher as directed.
http://www.britemax.co.uk/acatalog/Black_Max.html

After using this, if it was a car, then it would be sealed and waxed with carnauba to protect the paint.

Naphtha. Use a little on a microfiber cloth.

I use Autoglym super resin polish.if I am polishing nitro for the first time I finish with Chroma 1500.its actually designed for finishing 2K poly paint but works a treat on Nitro.