The most spell speed achievable with the Edenmorn Black Mage weapon is around 3200 with HQ Zefir food. That means you have to start with the Blizzard III opener, which is slightly less optimal compared to the 3600 spell speed Fire III JP opener. I am not sure choosing the lower VIT weapon is advisable for Ultimate considering Lalafell already have lower VIT than other races. Lalafell are the coolest looking Black Mages though.