I've been using yonex racquets for like a year now and I can never seem to find a exact same weighs same and same balance. Whenever I buy a used same grip size racquet, It feels different, other one is heavier than the other, or Grip size would be slightly different even though its same labled grip size. Racquets that i have been using are Mp Tour 1-98 and Ultimum ti-50 standard and the longer version. all of my racquets feels different. Does anyone know why? and solution for this?