I had a game where using Zapdos-G broke the calc. it also did this for Arceus-Water when I went to go try Ubers. Definitely a supporter of form change, for Aegislash, mega evolutions etc.
Is it possible that the sets could adjust themselves based on damage rolls somehow? i.e if you have a typical Ferrothorn in against Weavile, and the Weavile does damage, the calc can immediately go "that's banded!" and automatically adjust the EVs and item to account? I've had situations come up like that in testing, where it took me a second to realize I was playing a banded Ferrothorn yesterday and would be cool if the automatic sets would adjust themselves like that to save me and others the trouble
Is it possible that the sets could adjust themselves based on damage rolls somehow? i.e if you have a typical Ferrothorn in against Weavile, and the Weavile does damage, the calc can immediately go "that's banded!" and automatically adjust the EVs and item to account? I've had situations come up like that in testing, where it took me a second to realize I was playing a banded Ferrothorn yesterday and would be cool if the automatic sets would adjust themselves like that to save me and others the trouble