bio

Ive heard from alot of red mages that they regret getting bio III. Why is that? Does it do more dot then bio II? Is it because of the mp sink? Is it just not worth it on hnm/wyrm/kirin? Im considering changing my phalanx II merit into a bio III merit is it worth it? Also does bio...

ok....ive heard all sorts of things about bio and dia. what i wanna know is do they cancel each other out or not?

I have been told...read...whatever since I started playing FFXI that bio and dia do NOT stack..and that they in fact cancel each other out. Last night in the dunes our Elvan whm took offense to my macro stating that I was casting bio and do NOT cast dia. I think what pissed me off the most was...