I think I already know the answer to this, but just to confirm... Let's say you're building lots of links to all of the pages on your site... As a general rule, isn't it pretty normal to see a slight decline in traffic / SERP's before every big improvement that you see? I guess what I'm saying is... as you go about building links... Isn't it pretty normal to see your traffic continually increase in the form of large spikes and smaller valleys. It's not really linear, right? Hope this post makes sense.