Leveling an Archer and I looked over Arcanist and really was impressed by what they could do (I love pet classes) and Scholar looks like a unique challenge for me. But the problem is that the Archer is 25 and in the middle of the story quests before the Ifrit fight.

What would be best EXP wise? Should I get the Archer for 50 or so before focusing on the Arcanist or just do the switch right away?