Anyway, surplus xp, the topic you love to hate. Now I never like to say i "hate" something before I know what it really works like and being that we're still in beta and all and haven't had any version update to indicate to us what changes or tweaks that might be made with this system, I thought I'd speculate and I think I have a fairly good idea here on where this may be headed. While I was playing today I finally witnessed surplus xp (after 3 weeks of beta, although I do juggle things around a lot so...) for the first time. This is basically what it shows when you defeat a mob... (quoted below)
You gain 220 conjurer experience
You gain 25 surplus experience
(not exactly but close enough): notice how it says "you gain", that means we didn't lose experience in this case. So, my take on this is that because SE recently told us that you "will not find armor or weapons in vendors" in FFXIV (as far as I know, I only heard from other people and the podcast with Gary), I think its obviously important that they get crafting in motion so as to have enough resources to go around. I think surplus experience "gained" from other classes' "fatigue" will give you experience *bonus* when you play other classes and therefore it'll be beneficial in that regard. Of course, this doesn't justify it for the people that want to play one class and one class only but I think its necessary especially that SE has decided to go the route of no vendor sells armor/weapons...so you only get those from either completing leves, as a drop from certain mobs (mainly i've seen them in faction leves), or if they're crafted...If it does play out like this, it wouldn't be too big a hit imo for me personally anyway...I can live with surplus xp if in fact it does turn into bonus xp for other classes you level up.
I'm sure i'm not the first person to think of this but i just thought it might be a possibility and wanted to see what you guys think of this. peace out t(-.-t)'ers... :P (i'm not very gangsta tbh XD)