I have came across fake Yonex racquets before but nothing like this. The other fake YY was copy of the ArcSaber FB which was immediately apparent once you pick it up - feels like the original YY Blacken!
This yellow beastie was another animal altogether. Build quality and finishing material quality was superb.
Physical giveaways were the YY logo at the T-joint, as well as the non-aligned wordings along the shaft.
Feels light for a 3U but handles extreme well, like the real thing.
My take is that it is a real Yonex which failed QA or one which was process "wrongly". Reason is because I believe it is a Voltaric I-Force which was finished incorrectly. When I help string the racquet, the grommets layout reminds me of the I-Force, especially the unique position of the last line to be tension on my stringing machine. I would swear it was a I-Force if it was sprayed black and passed to me for stringing!
I enclose the pix(s) below for your review.