Dreamstate FTW?

Our 5v5 team has had a couple of good weeks - going from a 1430 rating (328 points) to a 1605 rating (471 points!). We've all managed to get some better gear, learned to play better and learned to coordinate better.

I've been going with the standard 8/11/42 resto build for these matches, but I'm thinking of changing it up to a Dreamstate build like this one (37/0/24).

I find that my role in 5v5 is to keep someone perpetually cycloned. I'll hit 1 person up for 9 seconds (6 seconds initial, 3 seconds 2nd cast). I'll switch targets for another 9 seconds of CC, then usually back to the first target. In between cyclone casts, I'm either throwing a hot or two on whatever people on our team may need some spot healing. Often, no healing is necessary (because our disc/holy priest has everything under control), and I'm not doing anything.

I feel that my 8/11/42 build is suboptimal for 5v5 - it's really more geared to 2v2's and to a lesser extent, 3v3's. In 5v5's, mobility is almost unimportant - you can get away and hide from 2 people, maybe 3. You're not hiding from 5, and you can't get away when you're the target of focus fire from 3-4 people.

So let's take a look at pros vs. cons to the Dreamstate build over 8/11/42

Pros:
- Insect swarm - 2% hit reduction and a dot? Yes please.
- Nature's reach - 20% extra range on cyclone? Yes please.
- Improved DPS through focused starlight, improved moonfire, vengeance, celestial focus.
- Improved healing and DPS through lunar guidance.
- Higher survivability through moonkin form (+400% armor) and balance of power.
- Great MP5 through dreamstate.

Cons:
- No feral charge. Not a big loss for 5v5.
- No swiftmend. A significant loss, but not so important in 5v5.
- No natural perfection. Ouch - but does 400% bonus armor make up for this?
- No empowered rejuvenation. Ouch - but does lunar guidance make up for this?
- No improved regrowth. Significant, but less so for 5v5.

Seems like almost a no brainer. Anyone had any experience with this build?