Combat Calc Q

Hey guys,
First off many thanks for all the awsome calcs/tools. Much appreciated. I have a question regarding the combat level calc. A brief search and read suggests the forumla you all use is not 100% accurate. This much has been apparent to me for a while when I attain a level expecting a new combat rank and sadly don't receive it. I was wondering what formula you use currently so I can run some various calculations and see if I can determine where you flaw lies. Obviously there is a 100% accurate formulae since runescape is just a program and is inccapable of making a judgment call

Anyway my current combat level is 106 with stats as follows,
84 att
88 str
84 def
88 hits
80 range
80 mage
65 pray

your calc shows me at 107

Thanks for reading.

We have a database of thousands of stats to run calculations on, we have not gotten a 100% accurate formula yet, because if you have ever done a calculation with 6 different variables the range of solutions is very hard to get especially since the only value of combat we have is a rounded value of combat. If runescape gave us a decimal combat number it would be a lot easier to calculate.

No other sites have yet to get a 100% accurate formula either that I know of.