Guncrzy:
I put CQB Solutions HST slings on both my entry guns, with the KAC QD single point adapter for the CAR stock. Like all single point slings they have their own set of problems (the gun swings freely if you don't have at least one hand on it, and you have to be careful of the muzzle when you go to prone or kneeling), but overall I like the setup very much. Weak hand transitions are a snap with the HST, since all you have to do is bring the buttstock over the top of the sling to go to your weak shoulder for corners. I had Giles slings on both guns, but when I installed SureFire 500s, the slings would not work, so I went to the single point slings to get them out of the way of the lights.
I first tried the GG&G single point adapter, but I liked the idea of a QD sling swivel so that I could remove the entire sling without having to rethread everything through the buckles. The KAC adapter is ambidextrous, which I liked since I am lefthanded.
There were a couple of posts here about this question a few days ago....what I put above is JMO, YMMV, but I have been very satisfied with the setup.