I did a mix of platinum arrowheads and Mailbreaker's to 70. From there I made Ashura to 73, fusion bolt heads to 78 and phrygian ores to 80 and started cutting beads till 87.
The only tip I can give (this applies to basically any craft) would be don't get worked up over gil loss for leveling. I did the same when I did goldsmithing again on my re-rolled character and I ended up stopping at 60 for a few months because of it. Just suck up the loss and dyna farm for a few days if you need funds to pull it off. It'll pay off in the long run.
I will say though, if I could re-make the decision as to what craft I should of leveled, I'd probably choose smithing or leather. Seeking something other than disappointment when it comes to new GS synths, S-E.
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