Hi Carl, Yes it is blue, but that's easily fixed. What I did different was to
experiment. I took 60 x 8sec subs @ 1600. I didn't even do a PA, just used marks on the ground to roughly align the tripod feet. There was no sign of 5128 on the individual subs. Next I plan to take about a hundred subs at 800. I'm just looking for ways to reduce noise.
raymo
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