Lets say I have a website with couple articles. Of course theres a BIG benefit from making another article instead of adding it's content it to the same one. But what I want to do is to save time, create short articles and fire backlinks, then add content (to these articles) over time. How google reacts to this? Do they crawl changes instantly, or slowly, did anyone notice ranking increase or drop after doing this? Is this recommended or not at all?