I recently made a video showing the dynamics of the "Iorbar's Peak" Instance. If you need help, or info on this instance, click on the link below, to get to the video.
If it was educational, please, give it a thumbs up, or a helpful comment. If you'd like to see more videos based on LOTRO, subscribe!

http://www.youtube.com/watch?v=21EaI...j-fmWzraQjhuLw

Thanks, and enjoy.