Synergy Skill

I apologize in advance if this is a re-post of old info, but I got a headache trying to sift through the search results of old posts.

My question is this: In going from 50 > 60 skill: x2 Vitriol + x4 gold leaves is the synth I want to spam, right? I can gain 10 levels doing this right?

Then after 60 > 70 skill: x2 Vitriol + x4 platinum leaves would be the next one?

There's so much info missing on wiki and I figured I'd appeal to the wisdom of the community here.

Thanks in advance for any and all advice!

yup