I still have the a2 on there. Have a hogue rubber one to switch it out with once I get a long enough driver. The psg style look real cool, but I dont like the way they position my hand. Screws up my trigger pull. Whatever you put on there has to be the flat top kind or else will require modding.
I'm still using the stock A2 grip. I didn't think I would like it, and had plans to switch it out immediately. Once I got behind the rifle it felt completely natural. When I quit looking at the gap between the grip and trigger guard, I never noticed it again... funny how that works.