I recently verified the cost of YONEX CARBONEX 7000 i found out 3 varieties CARBONEX 7000 DF(red) -1500 INR 30$(USD) CARBONEX 7000 DF (color different blue) - 1250 INR 25$(USD) CARBONEX 7000 plus (yellow n white) -1250 INR 25$ (USD) all these have serial nbrs.... So wch are fake? In CarBOnex 7000 PLUS (wat plus indicates?).... Are there different colors and models for the same name?? please help me