Okay, I get it then. The whole min/max thing really threw me for some reason.
I'm too tired to want to think through the chart, I'll give you a better post tomorrow.
I would recommend removing Precision as a factor at all though. Like I said before, Thugs and SCs are melee oriented by definition, so missile capabilities are of negligible importance compared to any other stat. Also, combat move may not really be relevant either, as it would generally always be the last stat looked at, and since base AP has no bearing whatsoever on actual combat effectiveness, the main difference is just in the layout and scripting of the army.