Originally Posted by Michal

What you have to do is establish what your underlying performance point is, and the only way to do that is with a large enough sample. The confidence that this will give you will be invaluable when you are looking at an extended run of outs and wonder if something is broken or what the problem is. We all go through those emotions.

The tendency is to tweak! Add a few filters, or more rules and change the mechanics, there by changing everything including your confidence level in the method and the risk that you are willing to endure. Usually this is followed by a further few tweaking sessions before the whole system is thrown out and a new grail is sought. That's the way most punters work.".