MAKE IT COUNT
==========
1. This is going to take a few runs to nail it down, don't be dis-heartened if you don't get it first attempt.
2. Go with what set-up your group feels comfortable with. Personally if your taking 5 Amber's, its a risky venture. If you do it right you will get to Ley-Guardian with around 5-minutes+
3. We took 2 Ruby's, 1 Amber, 2 Emeralds, which was our 'safe' group.
4. Kill as little drakes as possible can. Don't panic if you pull one or two more than necessary don't worry, you should still have time.
5. Before you engage the first boss, buff up, food buff's whatever, go over tactic, make sure everyone is confident in what they are doing.
6. Might be a good idea to mark the person who is most confident with the flight path, stick to him so the less-confident ones pull less unwanted drakes.
7. At not one point in the entire run did I (healer) or any of my group stop to eat or drink, the only time frame allowed to really do this is when you drop off the drakes just before you engage a centrifuge or boss.
8. For the centrifuge's I found the best way to do it was, Western Platform, mount up, go to the semi-circle and clear you way around there, then a short mount ride to the Eastern Platform, mount, straight to second boss, then do the third boss etc.
9. If you have the DPS and the healing power keep the 3rd boss (Mage-Lord Urum) stationary and just full out nuke the boss, we got him down in 27 seconds. However we did have Bloodlust and all our group were in pretty much full T7.5, I can understand that some groups may not be able to pull this off however, give it a try see how it goes, you may be surprised by the results and it saved us a lot of time!
10. Clear up to Ley-Guardian, and take out the whelps that you encounter, ruby's should of no problem taking him down.
11. If you get this far and have around 4 minutes or so on the clock the achievement should be yours, our kill time was 1:56, with 2 Ruby's, 2 Emerald's, 1 Amber. My job on Amber was to mainly time-stop when he enrages after coming out of phase 2, which is a good idea as Ruby's may be low on evasion charges.
Boss time kills for all out bosses was as follows:
Drakos the Interrogator - 0:41
Varous Cloudstrider - 0:40
Mage-Lord Urom - 0:23 (only boss used blood lust on)
We had 1:54 remaining on the clock when the Ley-Guardian died.
The boss times are not for /epeen. Just a reference to how much dps we were pushing out to how much time we had left.
It wasn't a perfect run I think we pulled about 4 drakes we shouldnt have.
Good luck, definately one of the more fun achievements I believe and quite satisfying to get.
========================================================================================
Overall, the key to getting this achievement is to keep a fast pace and not wipe on Eregos. We made superb time up to Eregos, even with a few deaths along the way. Don't give up if someone drops on a drake, etc. However, if you wipe on Eregos, you won't get the achievement, regardless of how sharp your time is. Here are a few things I've noticed after trying this achievement:
(1) After you kill the first boss, have everyone pre-assigned to their drake so you can immediately take off and start clearing. Once you start clearing, keep a fast pace with no downtime. I never stop and drink as the group's healer and use mana pots if necessary.
(2) If you pull extra drakes don't panic - just have one person in vent designated to call out what to attack and where to fly. Chances are that you're probably going to pull extra drakes by accident, even if you're careful. Don't worry - kill them and keep the pace fast and precise.
(3) Once you get to Eregos, make note of how much time you have to actually kill him - do not just rush in. If you have sufficient time, don't rush it. Also, make sure that the group stays tight together. We wiped twice due to people spreading out too much and not being able to catch every heal.
(4) If you're on a ruby drake, make sure to take out whelps when they spawn. Also, keep the group stacked together tightly so that the whelps won't spread out. This was a problem for us and lead to one of our wipes (the person on the ruby drake wasn't able to chain the attack to all of the whelps and kill them, which lead to excess damage on the group, which eventually lead to a wipe).
(5) If you're using multiple amber drakes, they should be communicating in Vent and calling out when to channel and when to attack. They should also call out when to time-lapse during enrages. The amber drake people need to communicate.