Woes of Martial Arts/Regneration, some help?

So my current project is a Stalker. I like the playstyle, but mostly just seeing the orange letters spelling "Assassin's Strike" =P
But I've found that, with MA as a primary, I only have TWO attacks and I'm approaching level 18. Furthermore, a suck a tremendous amount of endurance. I found that by adding Air Superiority and Sands of Mu only makes my blue bar angrier =[
Here is my build so far, what's gone wrong?
Villain Plan by Mids' Villain Designer 1.401
http://www.cohplanner.com/

[u]Click this DataLink to open the build![u]

Scarlet Minor: Level 17 Natural Stalker
Primary Power Set: Martial Arts
Secondary Power Set: Regeneration
Power Pool: Flight

Villain Profile:
Level 1: Storm Kick -- Dmg(A), Acc(3), EndRdx(3)
Level 1: Hide -- DefBuff(A)
Level 2: Crippling Axe Kick -- EndRdx(A)
Level 4: Reconstruction -- Heal(A), Heal(5), Heal(5), RechRdx(7), RechRdx(7), RechRdx(9)
Level 6: Assassin's Blow -- Dmg(A), Dmg(9), Dmg(11), Acc(11)
Level 8: Focus Chi -- RechRdx(A), RechRdx(13), RechRdx(13)
Level 10: Fast Healing -- Heal(A), Heal(15), Heal(15)
Level 12: Air Superiority -- Empty(A)
Level 14: Fly -- Flight(A)
Level 16: Integration -- Heal(A), Heal(17), Heal(17)
Level 18: [Empty]
Level 20: [Empty]
Level 22: [Empty]
Level 24: [Empty]
Level 26: [Empty]
Level 28: [Empty]
Level 30: [Empty]
Level 32: [Empty]
Level 35: [Empty]
Level 38: [Empty]
Level 41: [Empty]
Level 44: [Empty]
Level 47: [Empty]
Level 49: [Empty]
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Assassination
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[u]Set Bonus Totals:[u]

I'd place more lots in Hide for some more defense. I usually 4 slot Reconstruction until later levels.
Skip Fast Healing for now and work on picking up the Fitness Pool. You'll need Stamina to fix your endurance woes. Swift will buff both run speed and Fly Speed, and Health will give a 40% buff to Regen (not the 75% of Fast Healing, but you can take that later on)
I usually go for Combat Jumping for a modicum of defense(being able to hop around mitigates melee attacks) and Super Jump for travel.
Focus Chi...I often take that after 20 once my attack chain is established, and I have Stamina. (Yeah, hard not to have it immediately for Assassin Strikes).

Also: put some slots into your attacks! Regen will only keep you alive so long. You've got to be able to take down your foes.

It's a pretty common mistake to focus on survivability in lieu of attacks. The fact is that as a stalker you often get to pick when you get in a fight; and if you're hitting them hard and fast you won't need your secondary half as much as you think.

Here is what I would do.

Villain Plan by Mids' Villain Designer 1.401
http://www.cohplanner.com/

Scarlet Minor: Level 27 Natural Stalker
Primary Power Set: Martial Arts
Secondary Power Set: Regeneration
Power Pool: Flight
Power Pool: Fitness

Villain Profile:
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Level 1: Storm Kick Acc(A), Dmg(3), Dmg(3), Dmg(5), EndRdx(17)
Level 1: Hide DefBuff(A)
Level 2: Crippling Axe Kick Acc(A), Dmg(5), Dmg(7), Dmg(7), EndRdx(17)
Level 4: Reconstruction Heal(A), Heal(13), RechRdx(13), RechRdx(15), RechRdx(15)
Level 6: Assassin's Blow Acc(A), Dmg(9), Dmg(9), Dmg(11)
Level 8: Focus Chi RechRdx(A), RechRdx(11)
Level 10: Air Superiority Acc(A)
Level 12: Placate RechRdx(A)
Level 14: Fly Flight(A)
Level 16: Integration Heal(A)
Level 18: Swift Flight(A)
Level 20: Health Heal(A)
Level 22: Stamina Empty(A)
Level 24: Dull Pain Empty(A)
Level 26: Crane Kick Empty(A)
Level 28: Instant Healing Empty(A)
Level 30: [Empty]
Level 32: [Empty]
Level 35: [Empty]
Level 38: [Empty]
Level 41: [Empty]
Level 44: [Empty]
Level 47: [Empty]
Level 49: [Empty]
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Level 1: Brawl Empty(A)
Level 1: Sprint Empty(A)
Level 2: Rest Empty(A)
Level 1: Assassination
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Set Bonus Totals:



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Set Bonuses: