SMN coil dps question

[EvilJoshy]

My static and I are on t11. Our blm couldn't make it so a LS sch main filled in as a smn. We noticed she was running low on mp often. We found out her rotation after dots+shadowflare she was doing ruin1+2 over and over. At first she was doing more dps then me and smn is my main but in my defense I wasn't keeping shadowflare up all the time. Too busy running from nerve gas but I fixed that. At the start of the fight after I adjusted my shadowflare she was doing like 420 and I was pulling 515. After I started using SF as soon as it wears down I feel I helped my overall dps a lot but my main question.
ruin1+2?
To me I think that's just burning mp. Ruin 1 and 2 share the same recast timer and cd. I only use ruin 2 when I'm on the move or use it right before festers cd is rdy. The only benefit I see of this combo is doing a little dmg slightly faster for when you need to burn something. She claimed she had to energy drain a lot and in my opinion an energy drain instead of fester cuts into your dps. My fester does anywhere from 800-2250 with raging strikes, crits and foe. Can someone show me the math of using ruin1+2 vs ruin 1 spam please.

Last I feel like an idiot for not keeping shadowflare up as soon as it wears off so what is the optimal smn rotation for coil?
At the start I've been doing raging strikes, 3 dots, fester, Miasma 2, contagion, shadowflare, rouse+spur+enkindle, ruin 1 till fester is almost rdy, ruin 2 right before fester is rdy, fester, raging wears off. rinse repeat when able.
I spam ruin 1 when not doing anything else and ruin 2 only when I need to move. The one thing I'm questioning is miasma 2. I only use it when contagion is up. Should I be throwing it in all the time or is too big a drain on mp?

[Sunako]

I think the reason why she did more damage is, she burned all 6 stack of aetherflow for the energy drains and festers in the opener. That is doing really good burst damage but weaker sustained. Ruin1+2 combo is not doing any more damage than 2 ruins. And no miasma 2 is doing 10 potency less damage than ruin without contagion and burn 3x more mana than ruin, no point of using that. One way how u can save little mp is time fester during you apply bio instead ruin2 spam after your aetherflow is on cd or use it while dodging mechanics with ruin2.

[Zantusken]

Should only use Ruin 2 before an off-GCD ability or when you need to move. It is a small DPS gain to spam Ruin 2 in melee range because of auto attacks, but SMN has massive MP issues in final coil with just playing normally so it isn't a good idea to do that. Miasma 2 is a DPS loss unless combined with contagion(unless multiple targets, it has less potency than a Ruin). Your rotation with RS seems pretty on point, and shadowflare should be kept up in the same way as your other dots. It is a drain on MP but unless you spam energy drain for half of the fight you'll need a ballad either way.

[Sunako]

Actually you can autoattack during casting spells so ruin2 do not help even with that.

[Zamii]

Actually you can autoattack during casting spells so ruin2 do not help even with that.

you can auto attack between casts but not during them, its extremely noticeable if you compare a blm to a smn when they are both auto attacking

anyway as for the OP
what your doing (at least from what i've read) is exactly what you should be doing, as for the miasma II or not, its really down to the group, if your bard needs to mana song for you specifically, dont use it, if they need to mana song for the healers or are able to do all they need during down time (not that downtime really exists in t11) then feel free to use it, so long as you have contagion up of course.

also i would be careful comparing 2 summoners that are in the same group dps wise, the number get out of sync extremely quickly, making one seem a lot higher than they should be and opposite for the other.