So, a few things here.
1) How the hell do you create Tier 4 crafting materia when the highest gear for crafters is iLV 55?
2) What exactly is the trick to spirit bonding on a craft? So far it looks to me like spamming the cheapest material possible that will still grant EXP. However I'm at a loss atm as to what to use on my newly minted 50 Alchemist.
3) About what recipe level is the bare minimum for EXP gains using quick synthesis @ 50?