I've never even thought of comparing the weight between two skis... Maybe weigh your boots and always match the heavier boot with the lighter ski? 
But, on a serious note, there is no significance. It is an unnoticeable weight (though it should give you ample fodder for excuses if you crash) and, as usual, we are over-analyzing this. I'm sure that is well within any ski manufacturers specifications.
"...if you're not doing a double flip cork something, skiing spines in Haines, or doing double flip cork somethings off spines in Haines, you're pretty much just gaping."
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