Hello Oli

Welcome to the forum! Sounds like you are progressing well with your build.

I've personally only tried a burst finish using dye (my latest build) and had no issue in using hand rubbed method. Saves also having to purchase some extra equipment for spraying (unless you have it already).

There is a couple of Wudtone videos on YouTube that can give you some idea on technique.

http://youtu.be/lEefXGSPdao

http://youtu.be/9tW3cnaHlOQ

Cheers