Good stuff Andy, and a simple solution too.
As for Future, my first bottle lasted around 7 or 8 years, and the second bottle would have lasted the dame - had i not knocked it over, spilling 80% of the contents!
Got a nice shiny desk though!
The 'new' bottle is already showing signs of discolouration, exhibiting a yellowish-brown tinge, and doesn't give as good a gloss finish. Also, as seen in my P-47 build, it no longer seems to work well with flat base either!