http://www.guildwarsguru.com/forum/s...postcount=1666
Works like a charm. I've failed to get through only once when I wandered around too long and the Shadow patrols came back and killed me.
I do not attack the Dryders on the way, only the Driftwoods.
There are usually two safe spots. One is right after you kill the first 3 Driftwoods and go down to the left. Sprint to shake the Scales off you and hug the wall.
To get to the second spot you need to keep hugging the wall, and about half the way to the cave enterance you'll stand in the right place. Note that you may find one Dryder wandering in there, kill it.
I use Sskai's Sword and an Exalted Aegis (Tactics req.), and this bring my health up to 581. (Major Vigor, Superior Absorption, minor Tactics and minor Strength).
When I get to the cave enterance or when I fight the driftwoods I simply change my armor set and fight them (Knight's armor is not a must, but highly recommended. I once forgot it in the storage and believe me, fightning with Glad's armor is a real pain in the butt because you need to heal all the time. If you just think about using Healing Signet without "Shields Up!", you'll get owned in no time).
There might be a few scales looking for fresh meat around the enterance, just watch your aggro bubble and learn where they get and where is safe.
P.S.
It's really fun to get your Dragon Slash furious two times in a row.
