I am on my way to 80 with this team also. Question for Mosg2, how is the burst with 5 dps vs 2 healers in this case. After the grip, do you need to repen the healers to make the kill or you can pretty much drop your target in 2 seconds with two healers free healing on him.

I think if in 3 seconds you can't kill your target, you are running the risk of losing one for your own due to no active healers.
Against an equally geared team I feel like I can gib my initial target while 2 healers are on him. My DK only has 450 res and my Rets 600. They're rocking Titansteel Destroyers and he's got a Destroyer of Humanity. As I type this I'm uploading my fraps of week three of my Rets in arena. Pretty much every team severely geared me. In almost every game I was able to DG them in and then get them to <10% but then they got healed up, escaped, etc. I think once 3.3 hits and I get a free 265dps 2h sword on everyone things'll be looking much better

100% Disagree, nothing is better than timing your own burst. I know exactly whats up and when to use it. As well, ret is FCFS so certain abilities will be off cooldown at the same time.
Sure. No arguement from me that timing your burst is incredibly important. However, when you're running a mixed class team that ALSO requires you to spam one button constantly to work (IWT, or parkour button as it's known in my house) there's a trade-off you have to make--How many abilities can you manually control between all of your toons and still be efficient? Can you manually DPS with the Rets while you also run your DK? Then, can you heal each member of your team immediately? Can you roundrobin DS/DS with them too? Roundrobin Hammer of Justice? Roundrobin BE silence? Repentance rotation? Splash Repentance? Cleanse? Hand of Freedom? Wings? Hand of Protection your DK?

That's a *lot* of keys to hit when you consider you've only got two hands and you've got to be spamming IWT. When I was running just 4 Rets I manually controlled all the DPS abilities--I could keep everything in mind and had all my keys handy and I was comfortable with them. Once I brought on the DK it was too much for me to manage while manually controlling both the DK and the Ret's DPS. With a FCFS /click rotation I haven't noticed a difference in my burst and my sustained DPS has skyrocketed. I call that a success story.

I'm not saying a /click is the only way to go. If you can handle all of the things above plus whatever other super secret macros/strats you've got going for you, that's awesome. I can't... But I've found a solution that gets me even better results than I was and it's called /click.