yes panoz, congrats great shot and amazing athmosphere.
As to my shot, here is the setup as promised:
sb-900 diffused set to shoot 4 strobes at 1/8th of power. I then used the 105mm macro lens and frames the board. Fired and hit the board with my fist at the same time.
Now, the board was prepped and here is how i did it:
Drill about 3/4 through with a wood drill and space the holes about 3mm apart going all across the width. Then use an axe to hack at the side with the holes until the board is weak. Next use the back of the axe or a hammer and hit the thinned out part. The board will crack and splinter. rip it apart and put it back together, fill the holes and cracks with wood shavings dust and sawdust. Then its just a matter of timing. Because of how the board was cracked it actually is splintered and looks broken, not prepped. You can re-use the board as a prop.
Hope this explanation hasn't bored anyone.. sorry for the lengthy description.
//F