Steve,
In addition to agreeing with Jim's reply, I would like to add one other
caution based on your comment about Receiving Inspection. If your company is
still paying receiving inspectors to 100% inspect the incoming boards, they
are wasting their money, delaying incoming inventory and creating a false
sense of security. If the incoming quality is that unstable they are buying
from the wrong shops. If you are receiving a high percentage of x-outs,
inspect the x-outs long enough to learn where your supplier's problems are.
Work with them to improve their process or buy from a shop that better fits
the technology level of your boards.
Norm Dill