it is also fake because on VTZF (ltd too) the serial code is barely visible. you can hardly see the engravings made on the white cone and shaft. on the z force rackets, the laser engravings are microscopic defs fake. 100%
may I know in which part shown that it manufactured on 2011?i don't see on the cone show any number with number 11
actually, this thing has been discussed a million times already. briefly, codes on the cone eventually is the production date. DDMMYXSP, dd refers to days, mm refers to months, y refers to year of production, x is a mystery code and finally country code. as your situation,131012JP. it's should be on 13.10.2011. so far as i remembered, 2011 is year of VT80...LOL..and u have to match the date of production along with the shaft code.
and, every genuine yonex rackets HAS SERIAL NUMBER..