DoT Damage / Efficiency
I noticed on the Character Spell page that you attempt to calculate the damage and efficiency of the spell. I have been doing this with a spreadsheet for a while now to help work out casting order for my toons. One thing I do differently however is that I try to calculate all of the damage done by a DoT and not just the first hit as I believe you are doing here. This makes the DoT's appear to be inefficient when in many cases, they are the most efficient in the game.
Just my 2 cents. Thank you for the great work you are doing here!