Thanks Salopian, but I'm assuming one has to play with the amount of Brazil wood used.
I don't know if it's available in the U.K. but I'm having good results with an American product as a final finish. It has an amazing following here in the states. It's called Kramer's Antique Restorer and is all natural with a definite turpentine smell. It dries quickly as well. I am using it now as I have dyed the wood on a gun with the Behlen "Blood Red" dye that I read about on the first alkanet thread and it seems to work great. I was using Fiebing's Medium Brown Leather Dye but I had to dilute it with alcohol. One to two coats of the Blood Red works fabulously.
http://www.kramerize.com/Small Bore, I tried a Napier kit a few years back but it contains no stain and I'm not a great believer in fillers as well.