Also, here's a bit of work on the MP problem that a lot of poeple are saying there ISNT.

Base DoT Rotation + Durations:
159/30s + 133/24s + 106/18s + 212/30s + 186/60s (miasma 2 + contagion)

So the BASE rotation, without counting Miasma 2, is 610 MP - which is, on my character without SCH piety bonus, 20.3% of my total mp. FOR ONE ROTATION OF DOTS.

Now since Aetherflow exists, lets put this into a rotation fitting in with the CD of Aetherflow, and counting Contagion.

(159 x 2) + (133 x 2) + (106 x 3) + (212 x 2) + 186. Bio 2 Twice per minute, 40 second duration with Contagion (or so). Miasma 2 Twice per minute with contagion, 39 second max duration with contagion. Bio I 3 times per minute, 33 seconds max + 2 more casts per minute. Shadow Flare Twice per minute, 30 second duration.

Total MP Per minute = 1512 MP. or, 50.4% of Max MP per minute, when Contagion is used.

When Contagion ISNT used, the rotation looks like this.

159 x 2 + 133 x 3 + 106 x 3 + 212 x 2 for 1459 MP, or 48.6% of total MP per minute without Contagion.

Technically, the DPS increase from Contagion that you see is you spend 7.5 second less per minute casting dots, and you get increased Raging Strikes dots. You also gain 3 ruins due to that 7.5 seconds less of dot casting, so lets factor THAT in now, onto the Contagion rotation.

1512 MP + (79x3) = 1749 MP. So you spend 237 more MP per rotation when Contagion is used, every time it is used. (since 3 less dots recast = 3 more ruins) 1749 = 58.3% of max MP per rotation.

I havent factored in Aetherflow MP generation yet, so I'll do that now.
Aetherflow = 20% Max MP per minute

Making Contagion Rotations have 38.3% of max MP per minute, non-contagion rotations having 28.6% max MP per rotation.

Again, remember that this isnt including total ruin casts per minute.

In the Contagion rotation, you spend 3 more GCD's casting Ruins over casting dots, that's already been factored in.
On the normal rotation, you spend 14 GCD's casting Ruins(Math Below), so on a Contagion rotation that's 17.

Ruin casts = (60s - time spent casting dots /2.5)

60s / 2.5 s = 24 gcds/minute

10 gcds on DoTs without contagion - 24 gcd's/minute = 14 gcd's casting ruin
MP cost of 14 ruins = 79 x 14 = 1106 MP/Minute or 1343 with contagion
1106 MP per minute is 36.8% of max MP / minute without contagion, on a non-contagion rotation you get 84.4% of max MP per minute, or 64.4% with Aetherflow.

Now to count 2% MP regen/3 seconds in combat + aetherflow for total MP drain per minute without contagion

1459 + 1106 = 2565 MP/Minute

Aetherflow on Miqote Sunseeker = 20% of 2998 = 599MP restored
+ 2% of 2998 = 59 mp / 3 seconds = 1199 MP from Natural Regen

= 599 + 1199 = 1798 MP / minute

2565 - 1798 = 867 MP per Minute or 28% of total MP per minute spent.

This doesnt even count Ruin 2, of which you get AT LEAST 4 per minute, sometimes more. which is more than twice the cost of a ruin 2, x4 or x5, depending. So yeah, dat MP loss. this also doesnt count multidotting, of which there is TONS in FCoB.