Very interesting thread. With little experience or knowledge, I`ve been looking at a second AR. I`ve pretty much boiled it down to a LaRue Predator 5.56 16" UU Kit with a LaRue billet lower or a DDm4 V7 SLW. From what I have found, the Larue option runs $1090 and the DD $1450 with the DD being a little over a half pound lighter. I like the lighter weight of the DD, but it`s not like I`m going to be carrying it for miles at a time, so I guess it isn`t a huge issue.
What it comes down to for me is reliability, accuracy and durabiltity, with customer service and warranty being thrown in for good measure. I`m pretty much ready to pull the trigger one way or the other. I`m probably leaning towards the LaRue, but I would be very interested in hearing the opinions of others.