Bernard Taylor's instructions for the RNA kits say the 'bodies' should be Executive Dark Grey. Looking at the ones on Paul Bartlett's photo site:
http://paulbartlett.zenfolio.com/brrna (http://paulbartlett.zenfolio.com/brrna)
it looks as though the body ends are a grubby yellow (faded and mucky Warning Panel Yellow perhaps?). What do you guys think?
Cheers,
Phil