I have 146 mp and I sub /blu. I go through a lot of that when chaining T Lesser Colibri. As a a taru they tear me up something fierce and I find myself having to trigger 4 HB's in a row whenever I get hit by pecking flurry. Also feather tickle tends to keep me from killing them fast enough and I have to recast cocoon mid fight, and whatever hits land on me before it's back up really hurt me.
Cripes. Um, I'm not sure what to suggest... what are you setting in the way of BLU-spells? If you're not already doing so, prioritise HP, as it sounds like you're running on a very low HP total. Maybe invest in some Carapace Gauntlets as well (the ones with the Attack+8 DEF+16 latent on them for when you're in yellow or lower)
That sounds really odd. I was able to get chain #5 solo with /blm sub at 61--it's risky in comparison after I tried /blu, but in either case, I'm not sure what's giving you so much trouble.
My spell line-up at 61 was: Foot Kick/Power Attack (HB triggers); Sprout Smack*; Cocoon; Pollen; Head ****; Sheep Song and Healing Breeze (Autoregen); Poison Breath and Soporific (Clear Mind; nothing else really matters beyond this points; at any rate, you've probably reached your set points limit); Metallic Body (not required, but has situational promises).
I've soloed around 30k exp on Lesser Colibri alone, going from 61>62 and a bit into that level. You get pretty familiar with their behavior after a while. First and foremost, I would advise you install windower and then install the StatusTimer plugin. The StatusTimer plugin places a little timer beneath your buffs (counting down if the duration is known; if the duration is unknown, the timer will count up). Cocoon lasts 1:30, so when Cocoon is about 2-3 seconds from wearing off, start casting Cocoon; the effect overwrites itself, so you can cast it early and not receive a "No effect" message. If you don't want to install windower/use the plugin, you'll have to use your Cocoon recast as a gauge when to cast; Cocoon has a one-minute recast, so you'll have to guesstimate the other thirty seconds.
Secondly, get a feel for when they'll bust out a TP move. Generally, below 70% or so, they may or may not use a TP move when you use Penta; the lower the mob is when you use Penta, the more likely they'll use a TP move after a ws. You generally want to make sure Cocoon won't be wearing within 10 seconds, and you want to ws after you set off a HB, so you aren't "naked".
Thirdly, you can cast an HB-trigger spell mid-Flurry. Unless you're unlucky and the mob attacks "mid-ws" (sometimes it happens), you can cast a spell even when you're getting wailed on mid-animation without fear of interruption. Power Attack/Foot Kick are so quick, it's rare you'll get interrupted anyways.
*Sprout Smack, I don't know if Slow actually processes or not, but it is a physical spell. It's only one MP more than Foot Kick/Power Attack, so you might want to give it a shot next time--I generally forget to use it, though, since my FK/PA macros are so conveniently placed. I don't think I've had Head ****'s stun process, though.
I can't think of much else that could be giving you trouble. I run with 105 mp, and there's no real trouble there--MP cost does eventually catch up with me, but one tick with Conserve MP is usually enough to keep me going. My setup is fairly similar to yours with a few differences that don't really matter.
Good luck. There aren't really many options, unless Tarutaru have +HP RSE?
Edit: Poison Breath+Soporific gives Clear Mind, not Conserve MP. Edited, Oct 19th 2008 1:40am by jprvoices