You also get more 'Pack' if you use something like lard in your shocks. Unless it's warm, then it's useless. Damn you lard and not being heat resistant !
PS...the above is meant to just break up the very serious content of the thread and not meant to disway from the fact the less holes you have the more pack you have but also slower the shock responds, so, being incredibly basic
Less holes = more pack/slower shock = ideal for flatter tracks with large air jumps/ramps
More holes = less pack/faster shock = ideal for bumpy tracks with little air jumps
Lots of small holes (area) = less large holes (area)
Large chest pillows > small chest pillows