Difference on Ultegra 6800 and Dura Ace 9000 Front Derailuers

Hey guys im back, i just got the Ultegra 6800 groupset but am wonder the difference on the Dura Ace 9000 front derailuers. is it a significant difference in shifting between the Ultegra and Dura Ace ?
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http://road.cc/content/review/132391-sh ... d-groupset