1)yonex's racket is divided into many versions, so the landlord can pay attention to it. In mainland China, there are mainly ch (mainland origin), jp (Japanese origin), sp (Singapore edition) and tw (Taiwan Province edition).
Yonex, as a Japanese sports brand, naturally jp edition is the most expensive. Considering the freight, you can imagine. I think the landlord said that 1000 or above should be jp version, and 300 or above should be ch version. This version is basically completed in Chinese mainland from production to sales, so the cost is naturally very low. There is not much problem with the texture and racket data of these versions. The only difference I personally think is that there will be a difference between workmanship and painting. If what you want most is perfection, then choose jp!
2)Yonex ISO-AP racket itself is an entry-level racket, so it is absolutely suitable for beginners to use, so the landlord can rest assured.
3) The two rackets, ISO AP and Kawasaki 5980, should not be judged by who is good or bad, because the categories of rackets are different. 5980 attack, ISO AP balance. Which one to choose depends on the landlord. If you are strong and like to kill the ball, but not strong enough, you can choose 5980. Those who like to control more beats can choose yy.
Ha ha, personal opinion, for reference only!