Having just broken through the lvl 70 limit, I would have liked to see the option of excluding my "Asuran Fists" weaponskill from the searches until I had obtained it. I've got it now (lvl 72 and climbing), but perhaps if its easy you could add another tickbox above the "Exclude Relic Weaponskills" to read something like "exclude WSNM quest weaponskill" or something similar.
Its probably not worth the effort, but if you get the chance could you also add a state remembering cookie to the calculator, so that "Player 1" details could be remembered, since most of the time that will be your character each time.
By the way, great work on this calculator, it really is fine as it is but almost each time I go back you've added something else cool
ps. I just thought of another set of mobs you could add for us really lazy DDs. I realise that Empty mobs are dependant on their inner colours, but if you could put in a section for them with a colour description, it would help us guys that still don't really know all the strengths against each element (let alone knowing exactly what colour Empty is which element, ie, is that ice or light?)