I know what the codes stand for - Japan, Singapore and Taiwan. However... When I look on http://e78.com.hk/YYa.htm (Click on the badminton icon) they sell different rackets, each racket is available in different codes. For example, the JP Voltric 80 on e78 store costs $2100 whereas the Taiwan coded version cost $1290 which is almost half the price. What does the 2 letter country code mean? Why do the JP coded rackets generally cost so much more compared to SP and TW coded rackets? Most importantly, does the code affect the gameplay and quality of the racket?