Dew,
the charges in perforation guns are arranged in patterns - frequently spirals so the charges are like points on screw threads. If the number 8 was mentioned, then I'm guessing it refers to 8 total charges per foot (i.e. the 8 charges would be on different spirals). I know precious little about perforating but it is a big deal and lots of money gets spent on it so if they have guns that are distinctly advantageous, then it can be important. However, these sorts of things eventually tend to mysteriously re-invent themselves n competitors' tools so I wouldn't get too excited about it.
CLB is a good company but they have some deep pockets pointing guns at them. I suspect one of the things buoying their stock price is that some folks think that one of the gun slingers will eventually buy them.
Charlie
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