Re: Two Eids / One question
I myself go with #3, local sighting.
The people who follow the local sighting for it still go with the local sighting and those who go by Saudi still go with their sighting. Though this one is a bit more “controversial” in that the people who follow Saudi with say that those who go by the local sighting are wrong because there can only be one day of arafat. That also happens to fall on the 10th day of Zul Hijja.
This whole unity/disunity thing is exaggerated IMO. So we may celebrate Eid on different days, but that doesn’t mean there’s a lack of unity as long as we aren’t quarrelling because of it.