The problem with doing TM runs isn't the difficulty or player ability, it's the lack of communication. I've done TM runs on 4 toons and have seen TM run in at least 10 different ways. As soon as you form a new squad or add new people explain how you will run. Some people do half pulls, others full pull to boss, some full pull but stop before boss, and so on. If you don't tell people what you are going to do, they have to guess and that is when it gets messy. Plus don't rush between runs; I can't count the number of times lead started before people even had time to buff. Once you are out of the instance, there is no longer a need to hurry. I know with this game it's easy to become used to instant gratification, but sometimes you just have to wait.