I just wanted to add a few tips to those wanting to champion farm in Frostgorge Sound.
Firstly the path:
1. [&BIECAAA=] (Skyheight Steading)
2. [&BHoCAAA=] (Earthshake)
3. [&BH8CAAA=] (Dimotiki)
4. [&BIYCAAA=] (Drakkar)
Depending on what you view as the start and the end, the path is Fish, Kodan, Drake, Troll & Wurm. If the quaggan is up and in close proximity then the group will usually attack it. Though there will be people that don't stay to kill and move on to the Troll so you may want to port to the wurm rather than the troll.
The hardest thing about the farm is keeping up with the pack. There are typically two ways to stay up and both are pretty easy...
The first way is to preload the next waypoint before attacking the champ. This can be done by clicking the waypoint on the map and after the "Teleport to waypoint?" prompt appears hit esc. This will leave the waypoint on your screen for easy access.
See this video to explain better (I didn't make it so don't blame me for the music :) https://www.youtube.com/watch?v=Bo10FFOUZLE
The 2nd and my preferred option is to copy & paste the waypoint codes in order in a whisper to yourself. I have a chat window that only shows whispers so the waypoints will always be present and, unless you get whispered after the fact, will stay on screen.
The other option with this is to create a guild with just yourself and paste the waypoints in guild chat and make the chat window only show guild chat....though this option does take you away from GSCH :)
Important Note - Click the next waypoint when the boss is at 10%ish and stay in map. I have a keybind for take all that i will keep clicking, when you see you picked up the champ box then you know to click the link to move to the next waypoint.
Lastly, i'm very big on doing this ranged so you can quickly waypoint out. I stopped using my ranger because the pet would get attacked and would keep me in combat even if the pet is set to passive. Necro's and mesmer's are my favorite though with the mesmer i have to use runes of the centaur on a 2nd set of armor with a different build than my normal one. (20 20 30 0 0 for boon duration).
Hopefully this helps everyone keep up with the pack.
Edit - Don't forget the magic find food, a cheap yet effective option are spicy pumpkin cookies.