I read this on the BBC site today and looking at some old posts might be usefull to know.
http://news.bbc.co.uk/1/hi/magazine/8253915.stm
It worked for me when having my 'project' build cylinderhead repaired after leaving it in the shelf 2.5 years whilst doing other stuff to get the project finished.
Something to bear in mind.
Cheers,
David



