i ve seen loads that were tested the loads were identical in all areas but there wasover 2000 lbs pressure differace in the two loads...i guess its like buying two new chevy sboth coming off assembly line both being exact twins...you put them on the drag strip with the same driver and one will out perform the other in speed acceleration etc...most are pretty close in performance but then comes along a shell or car that blows the hole thing apart... charlie
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