For those that are bad at jumping, the best way to do this is with a sorc/sage using phase walk. When you are in the cave area put down phase walk when you get on a platform, and keep jumping to the next spot. If you fall use phase walk to get back. If you get to a spot further of where your phase walk is, go back to your SH, phase walk will clear, come back and you will be in the spot you left, put phase walk down, and keep jumping/going forward. It is long and swapping back and forth to the SH might be annoying, but beats having to start from the beginning every time you fall. :)
Not my proudest moment. I did Hammer Station, and i didn't chat with Malgus after the FP, meaning the quest didn't finish even though GF did. So basically, just make sure you end the flashpoint mission for the GF activity to trigger ;)
for others, what did you do to make it work Nyaard?