There's a lot to consider there in pre-shading (or even not pre-shading in Jurasikfrank's AMT Falcon)

Thank you all for your help, it's very much appreciated.

It looks like I'm gonna have to buy a compressor, I have been putting it off for a long time, but I think nows the time.

I haven't done a lot in the last 3 or 4 days as I've been very busy in work, and more for the next couple of weeks, but I'm sure to be able to squeeze in some precious kit building in somewhere.

J