Iss Sword Muse old/new buffs

Hello everybody! I wanted your opinion on what are the best (self) buffs for an Iss Sword Muse! Is it better to leave some old buffs instead of getting all the "new" ones? I don't know, I did my own tests and I really wanted to know your points of view. I'll bring you some numbers, just to have the best data in order to better give a judgement.

For the test I used a full Seraph Hevay Set +0, with no set option on. No blessed.
A pair of blessed Specter Dualsword +0, with no SA.
A full jewel Seraph set +0, no blessed.

Equipped on a Lv 95 clanless Iss Sword Muse

With no buffs on I have the following stats
http://i60.tinypic.com/2utqetf.jpg

Now, with the help of a mix with new/old buffs, I'm getting these stats
http://i61.tinypic.com/qoj59c.jpg

And now with the full set of normal Iss buffs
http://i60.tinypic.com/68so6q.jpg


The differences when using the buffs are real. I mean, over 400+ def. points with the "new" set, and an astonishing 3140 m.def with the old set.
Overall, the crit/aspd/atk differences are there, under everyone's eye. But I'm not sure they can REALLY be important. Aside that, old buffs give something more that cannot be read in the status window.
Song of Renewal -> 5% less MP usage, -20% Cooldowns
Song of Meditation -> MP recovery +20%, 10% less MP usage
Champion Song -> -10% Cooldowns, -20% MP usage

That's really something, with the new set only "Wizard Harmony" gives -20% Cooldowns. We're talking about a LOT of mana recovery, A LOT of less MP usage (Iss ARE mana hungry, I guess) and A LOT of cooldown reduction.

I know Iss Sword Muses are the "tankiest" of enchanters, and I'd like to keep it that way. So, here's the question. After all this, what's better? Old set (with the annoying 2min rebuff) or New set? Please, help me out! Thank you for reading me ^^

try with warrior or wizard harmony and the p.def will go down.

when the new buffs were first introduced, you could use some songs and dances with harmonies.
then they discovered the exploit and nerfed it.

i shoulda just edited... oops.

also, with song/dance they are costly when you have people using the class specific auras. as each aura increases the cost of song/dance.
so with 5 different classes, the cost would be large enough that you would only be able to realistically keep 1-2 songs up unless everyone switched aura off for you to buff. and unless you are a program scripted event, i doubt it would work out to ask everyone to switch it off.

i shoulda just edited... oops.

also, with song/dance they are costly when you have people using the class specific auras. as each aura increases the cost of song/dance.
so with 5 different classes, the cost would be large enough that you would only be able to realistically keep 1-2 songs up unless everyone switched aura off for you to buff. and unless you are a program scripted event, i doubt it would work out to ask everyone to switch it off.
This is, sadly, true. Keeping the buffs on is boring and costly as well, so yeah, I think I'm forced to get all the new buffs. Gotta admit, +1k mdef sounds just too good. But I guess there's no other option.
Btw I can't use harmony skills with the old buffs, it rewrites them.

Just go with the new ones. Old ones get over written with the new ones.

You armor, weapon, accessories, tats and etc will determine how you want to set up your ISS.

Just go with the new ones. Old ones get over written with the new ones.

You armor, weapon, accessories, tats and etc will determine how you want to set up your ISS.

That makes sense, thank you for your help guys! ^^