Skadi mostly is about concentrating and keeping a cool head for 10 mins or so

Suggestions:

.) Shadow resist aura on pally, it helps a lot
.) Frost resist totem, in case you do catch a breath

I do not reset the event anymore, but actually found it easier and more controllable to do it the normal way.
You have _plenty_ of time to move up to the end of the gaunlet since you need 5 harpoons anyway, so take things slowly and watch for the breaths.
Also place mana spring totems / all other totems so they're always within range of your group. I usually end up with 100% mana once at the end of the gaunlet.
Now, I prefer to fire harpoons with my healer, but fire the 5th (last) one with my tank.
When he's got the last one I move all dd / healer down the gaunlet again, so they're at max range to the pally (and boss).

Then pallie fires harpoon and grabs the boss. I then kill all remaining adds (rather important, especially the casters, they hurt a lot) and kill the boss.
When he whirlwinds towards the group you can taunt him before he reaches them (and pray for not getting a resist).

This fight really favors the ability to move healer / dd independent from the tank, I have dd follow the healer and move with healer and tank.

So, to condense all that to one sentence: Move dd / healer down the gaunlet before killing the dragon

Edit: And yea, your tank has to be able to survive the ww, because sometimes he will choose to ww him instead of a dd. And running away with a tank usually is a stupid thing to do (no dodge/parry from behind)