I've sworn by elemental Obi's for SCH ever since I got the job to 75 before abyssea. I have Air Ice and Lightning and get use out of Aero5, Blizz4 and Thunder4 quite regularly. I couple the obis with a twilight cape for maximum efficiency and put m.a.b and INT everywhere else. I also have enough organs for Fire obi so I'll get that when maintenance is over. Plan on getting Light Obi after fire.
However, looking at the Helix wiki page I notice Helixes always get day/weather bonus anyways. Should I only use Obi's for nukes, and macro in INT or M.a.b for Helix's?
I looked at a few threads but they were moreso SCH vs BLM which is not my concern. I have both at 90 and I enjoy both jobs, I don't care to compare them. Just want to get the most use out of SCH, which is a very fun job :)