As a smith I would start in ulda. Get gs support and do the gs synths, then take the bs leves that need guild support to Limsa. Now, spectacles in Limsa need gs guild support but I have that. So I finish limsas gs quests, then do ulda and limsas bs quests and take the bs support to gridania where the bs leves often require support.

Then I return to ulda. Crazy yes, but it works decently.

But yeah they should probably not put those synths as local leves.