We've been told by google that we can't raise the limit and we must add another adwords account via MCC. I can easily see our two accounts having overlapping keywords for things such as brand-marketing vs. product category-marketing. We have no interest in breaking google's policy of double-serving, are there automated ways of of ensuring double-serving does not occur?
Also, if we were to break the double-serving policy by error, what are the ramifications? how long would it take to be back to normal?