Ray,
I use Chewys 3 hr base and his madras recipe(with a couple of minor tweaks to suit my personal taste). It tastes absolutely nothing like a madras from Glasgow, BUT, IMO it tastes better...because you know you made it from scratch.
herein lies the problem. last week I took a Chewy madras up to my bro in law. he said "no way did you make that you fcuker"...or words to that effect. he was well impressed. in fact, he mentioned a few times that it actually tasted better than the skanky T/A that he uses 2 or 3 times a week...
my next project is gonna be cooking this with Blades chicken tikka..this is gonna blow him away

anyway, the point I'm making is simple...if you can make a Ruby, to suit your needs,with the information on this site, well done you.
also, Kudos to the many people who create and re-create to give people like me the chance to easily make some right tasty curry. BIR or not

anyways...been on a xmas nite out...sorry for the seplling mstikaes
HAVE A HAPPY CHRISTMADRAS