Does double XP give you altitis?

My poor Gunslinger. He's been hovering around level 50 for weeks, and I planned on using last weekend's Star Wars: The Old Republic double XP event to finally get him moving toward Makeb. Alas, I opted to get a few more alts off the starter planets and past Coruscant instead.

I did this because double XP in SWTOR really ought to be on all the time. See, the accelerated advancement is tuned almost perfectly if your aim is to level up doing nothing but your class story quests and a couple of flashpoint dungeons. There's no need to grind through all the repetitive filler in between the story missions, and so I wanted to get as many alts as possible off of the newbie planets so that I can get on with the business of finishing their story arcs.

What about you, Massively readers? Do double experience events give you altitis, or do you normally stick with a main character?

TH