My reply
Hi guys
I have created a very simplistic odds calculator with Excel but it has flaws because favs are never value.
There is little doubt you lot are doing things much bigger and better than me. Are any of you prepared to give me an pointers as how you make your books, as I am very interested myself.
I have posted a screenshot to show how simplistic they are at the moment. It was refined again, as the one you can see is a bit rubbish, but you get the general idea.
