Is there a noticeable difference between the manufacturing places of racquets that are the same model? In other words, is there a difference between TW, JP, SP, AU, US, etc. racquets? I ask this because on Sohubuy.com the prices differ greatly, With JP racquets being the most expensive, TW racquets being less expensive, and SP racquets somewhere in between them. Also, is Sohubuy a legitimate seller?