The quad rail and retractable stock are pretty much worthless in the woods.
They may not be your bag but don't ya think "worthless" is a little extreme??
I personally like the MagPul CTR stock and having the ability to easily shorten a rifle's overall length for carry/storage/use in tight spots is a BIG plus.
As far as quad rails go, I have one rifle with a quad rail and one with a 1/2 quad rail (along with standard forearms too). I
really like the 1/2 quad for the ease of adding a light and the fact it's a free-float set-up. And, while I probably wouldn't go with full quad rail again, with rail covers, it's basically no different than any other forearm.
IMO, a full quad rail is kind of like a Jeep roof-rack......they're mainly for looks but can be pressed into a real use if necessary!!!
