Quote Originally Posted by LunaChild View Post
Doing Rank15 Local leve now should give you 300~700+sp.
After you reach Rank15, take Rank20 Local leve. (Rank15 if no Rank20 available)

Make sure you use Master Facility at Blacksmith guild to help you grinding and doing leves.
Guild Support does NOT help you in grinding/success on Synths. It is ONLY for recipes that require it. Other then that, Guild Support does NOTHING to help you succeed more synths.