Yep- what bow is the 72 pounds on?
And which Terminators? Unfortunately for many CX shafts in each line (Maxima, Terminator, Rebel, etc) , the camo finish spine weaker for the same size/numbered shaft than the black finish- due to the nature of the camo process CX uses.
Also there is a Terminator "Lite" series (in black and camo with varying spine), as well as a Terminator "Select XP". 2 pretty different shafts with varying weights/spines/specs as well. Though it looks as if CX may be dropping the Term Lite series for 2010 (they have several new arrow shafts they put up on the website I guess by accident a couple weeks back, as they have removed them now)
Sorry for the ramble- 3 cups of coffee already this morning