well i don't work for brunswick or anything but i'd imagine that one is from a first run through the part of the plant that labels the cg and the second mark is from a quality control run where they recheck each marking...
I'd imagine one of them is right, easiest to just use a scale to see which one if it concerns you that much.
In my experience, they were never more than about 1/2" apart so i didn't bother
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High Sanctioned Series: 750
High Sanctioned Game: 300 (x2), 290 (x2)
