I picked up a used SS, Solid, and Particle that I'm finally getting to drill this evening. The pin of the SS is longest at 4", the Solid is at 3", and the Particle is at 2.5".
I was thinking about drilling them similar and let the coverstock dictate the different reactions.
Here's the latest video I made so you'll know how I throw.
http://www.youtube.com/watch?v=iUDjQcwCjpUMy pap is 5" over, 1" up.
What do you think of 4 x 4 with the pin in or near ring? Are the Ogres better suited for a different layout?