[StuBeeDoo]

I got lucky yesterday, but not with mixing.

I went to the model shop because I had run-out of Humbrol yellow acrylic.  Browsing the rack, I noticed no.132 satin red.  For the sake of £2.69, I decided to get one.  What do you know??  It's as close-a match as anyone is likely to get without using one of those machines that B&Q use to match household paint.  It just needs a coat of gloss lacquer.

But, this thread has jogged my memory about the intricacies of colour mixing.  Hopefully it will help others.