GCA. They sent my info over to CMP. Did the membership online for GCA on a Monday, mailed my paperwork to CMP on a Wednesday and I received mine on Monday. The cmp ships fedex priority overnight. I was more then happy, to say the least!
One week turn around time. A coworker had the same experience. Another coworker, his took 3-4 weeks. But was ordered between Thanksgiving and Christmas. He emailed asking him where his was, and they said they were behind in processing paperwork. I would say 6 months is plenty of time! Without a doubt.