Billion and other large numbers
Where I am from (Barbados) I grew up knowing a Billion to = 1000 000 000 000, not 1000 000 000, and it was some years before I learned to use both. Unfortunately, cultural penetration by American standards and culture means that many of our children use the American standard, while some of us (like me at 23, and most people older than myself) are stuck with a mind that thinks in the British standard.
With that preamble out of the way, I am wondering which standard I should use for a novel (which I am writing). Personally I prefer to use the British standard (because that is what I am accustomed to, and it is troubling to use the American standard). However, I don't want to run into problems, so what should I do?
Is it enough to simply put a disclaimer (using an asterisk and pointing out why)?