As for the issue of whether or not we're required to test the finished product at THIS phase (b/c we definitely have to after the August deadline), here's what the CPSC FAQ's says:
"Children’s products manufactured after February 10, 2009, when the lead limit may not exceed 600 ppm, will need a general conformity certification based on a test of the product or a reasonable testing program for products after that date."
Also:
"On what does my certification have to be based?
The general conformity certification must be based on a test of each product or a reasonable testing program."
It's that "or" in there that makes it unclear, but also seems to leave it open to a legitimate defense that a "reasonable" testing program would include getting the test results from all your supplies to put into your GCC for each individual product. Yes, there's no question about in after that August cut-off that we no longer have that option, but the writing is vague for this phase.