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FWIW, and for interest sake. The holes drilled into the Sec' cage rings all 60
of them cut 253gms in weight off the sec' cage equating to 1265gms to
counter it in the mirror box. The bonus being I believe (as a rigger and one of
some engineering background) circles (holes) keep the structural soundness
of the rings whilest eleviating some of the weight. Plus they look good to me.
regards,CS
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