What is Aran's MP usage per minute?

Overswing's first hit is 420ms the 2nd hit is 660ms and I think it's 540ms for regular attack all at normal 6. Final Toss is 420ms.
Assuming maxed:
1st hit of overswing: 20 MP
2nd hit of overswing: 22 MP
Final Toss: 25 MP

Boostered speeds (faster 2):
overswingDouble: 330ms
overswingTriple: 510ms
Regular attack: 420ms
finalToss: 330ms

 I think

x+y = 47 casts per minute
xy = max
y = 47-x
x(47-x) = [47x-x^2]d/dx = 47-2x = 0
x = 23.5
23.5 + y = 47
y = 23.5
totalMP = (23*22)+(23*20) = 966 MP a minute
966 - 228 = 738 total MP a minute for Overswing only.

Many thanks for the time you have given me.
So then if I could socket at least 4 pieces with 12/4 then I could theoretically spam OS and with four 24/4 I should be able to spam FT. This new system looks promising for someone such as myself as I would basically have infinite Mp to attack and recover health with Combo Drain, the +3 seconds of Invincibility socket would give me plenty of time to recover so unless I get hit for more damage than I have Hp or I get seduced this is what I'm feeling
[video=youtube;fXW02XmBGQw]http://www.youtube.com/watch?v=fXW02XmBGQw[/video]
Have I missed anything?