How do you like the stock? I love the looks of it and was thinking of using it in a lighter weight build.
I can't claim to have enough time behind M4's to give credible opinions on stocks, but I can tell you a few things. It's comfortable. I would imagine that the little rubber "cheek weld plate" (don't know what DD calls it) works to some degree to give you a better cheek weld, but I don't actually notice it's there. Just to be sure you know what I'm referencing:
The other thing I would note is that the release to expand or collapse it is easy to manipulate. I fiddled with it to see how it worked, then I expanded and collapsed it several times without looking at what I was doing, and now I can find it and actuate it without looking. And it's out of the way in a way that I don't see actuating it by accident. So fairly good from my limited perspective.
AND it looks sharp.

The gun store where I bought it has 100+ M4s on the wall, and that stock makes the Daniel Defense rifles stand out from the others.
Another option -- I know from my reading that a lot of the 3-Gun guys looking to reduce weight use the ACE skeletal stock (non-collapsible), so you might want to check out that one, too.