Sorry I couldn't follow your Basic Attack DPS calculation in the excel sheet, but I'd like to make a note on a possible pitfall when calculating the DPS contribution from damage and attack speed for dual wield.
The top equation is wrong. The bottom one is correct. They're the same if the attack speeds on each weapon are equal however, which makes them easy to mistake for one another.
Thanks strill. The Basic DPS calculation could well be incorrect because its very complicated. I saw that equation on the wiki you mentioned before. I will try to implement the bottom equation because I am pretty sure that the one i am using is the top one.