(09-16-2015, 02:37 PM)Warren Castille Wrote: Doing every quest will make sure you meet the MSQ gates without issue, and then force you to grinding other methods to work on your follow-up jobs. It becomes especially painful in the 50+ content, because you're somewhat forced to do all the side stuff to advance, which makes for empty zones starved for something to do if you're working on job #3 or 4.
Which is why I heavily recommend if you want to "main" one of the new classes... rush your "placeholder" class (like the aforementioned WHM/DRG in my post earlier) to 50 - and try to leave as many of the level 30+ sidequests incomplete for when you unlock AST or MCH. Since they start at 30, that'll help make getting them up to 50 easier, and then you can have all that HW content for the new class.
Otherwise, you'll be running a lot of dungeons and FATEs to cover that gap in any sort of haste. And I'm saying this as someone who has - all on one character, mind - all the combat classes at 50 at least (minus MCH and DRK), and working on my third 60 in AST.
Best recommendation is to figure out which ONE class you want to "main" and get that one to 60, and then level whatever other ones at your leisure with that XP bonus. And you'll have all the glamouring and dyeing stuff unlocked so you can start putting together some delightful RP outfits.