Dominic, I got a tip from my friend Joe Moore in the States. He washes the figures with GW Flesh Wash ink over a white undercoat. I've seen it on his figures and it looks really good. I've tried it on seven Redoubt FIW Indian figures and it looks very acceptable to me - quick too! {I've not got any pictures, but I used the same technique on the body of my Scorpion King conversion, so you can get an idea from that.}
David