Yhep, you can use Nitro over wudtone. Just make sure you leave the wudtone to cure for at least a month beforehand.
Also scuff the finish with 400 grit before applying Nitro.
Now for the good news.
You can spray nitro over Dingotone!
Just apply the staincoat, let it cure for at least a week then scuff and spray away.
The important thing with nitro is to first give the Guitar a coat of Vynil sealer, then cut it back with 400 grit then apply the nitro.
I add a few drops of Fish Eye remover to each coat, this eliminates any annoying pin holes that may appear.
