Most of it depends on the tech guy and how crazy they want to get with your car. I have raced at Woodburn many times and for the most part I pulled into line, put my hood up and they just walked bye and looked down and I was through.
I think most people that have the really crappy looking cars that look as though they are held together with bubblegum and string get gone through with a fine tooth comb.
I personally love their track WAY more then PIR as their tech guys are much better, much quicker and my times are always at least 2-3 tenths quicker.