How much is too much?

[joeydb]

Originally Posted by blackthroatedwind

If I posted mine for 2012 you would probably kill yourself.

Good or bad?

As to the original question, I would say to measure the inputs that one uses in terms of their past effectiveness and order them in decreasing percentage of advantage. At some point, given that list, you can deem the lower contributors to be giving "diminishing returns" (unless their yield is VERY consistent and higher than the rest), and even then you might want to split it into a separate approach weighing different factors that only are used when enough price horses are present.

In other words - apply some empirical measurand to it. That will give you confidence and a consistent measuring stick by which to evaluate your effectiveness versus the length and difficulty of the approach.