no spell takes that long if you're feeding TP right..
/use all blu spells that give TP but do little-to-no damage. silence does pwn. /rdm /sch /whm (/blm) is great. Geist Wall and Blank Gaze Berserk 'cause it's annoying. Don't use shadows, buffs, etc.
/naked!
/don't kill the mob until it uses it... patience.
/head butt (etc) bad TP moves if you're slick =P often a new TP move will immediately follow the stun and is often different from the first one. Just don't stun the one u want! XD
I like to get spells with the gloves on and back then would use the um... Holiday outfit that makes selbina milk better (rofl) but it's nice at low lvls. Also a fast annoying low dmg weapon is key. Event items aren't bad for this, once again low lvl. course now u can just get FoV buffs :3 some say doing high dmg to higher lvl mobs is faster but I've never noticed a difference; more depends on style and gear.
no blu spell takes more then a few hours this way.
Longest I've ever had to wait was 4 hours tops, for Frenetic Rip, and that was just because we weren't breaking the horn right. Once we got it down it took just a few minutes..
Four 85 blus in our ls. None of us took that long on a spell.
this one is easy compared to those to come.
if you're really bored multi-task while it TPs.
Hope that helps~ end game Blu is worth EVERY moment spent learning those spells so don't worry. The reward is worth it! Keep it up~