Firstly, does he even WANT a Jpen racket? Even though they both only have 1 side, the feeling can be much different. This is due to the head shape (square vs circle) and the bit fat cork on the handle for Jpen users. A prime example is Ryu Seung Min's or Kaii Yoshida's grip, in which they both are fundamentally the same, just that one prefers the Jpen and the other the Cpen.
Now for the PROS and CONS of Jpen:
Pros
- Much stronger smashing attack than BOTH Shakehand and Chinese Penhold, due to the head shape, cork, and commonly used Kiso Hinoki wood that makes up the one ply of the racket
- You can hold it better than Cpen
- 1 ply Hinoki wood feels very good, especially on Jpen
Cons
- No backhand (unless you wanna ruin the feeling)
- Needs FANTASTIC footwork
- Less spin than Cpen (Jpen is more on speed)
With that out of the way, I do have recommendations for your dad!
1.
Yinhe 985
- This blade is very cheap, and has multiple plies of wood. It has decent control and speed, overall good choice is you lack a big budget.
2.
Butterfly T-Max
- Basically, this plays like a high quality hinoki racket, but a tad cheaper than most. If you have a bigger budget, this'll be the best option.
3.
Xiom Hinoki Seung JPEN
- An inbetween of the two, this Jpen is ALSO 1 ply hinoki.
As for rubber, any good European or Japanese works. Usually the likes of Tenergy 05. Chinese rubbers don't pair with Jpen, for a reason I genuinely don't really know. Just try to use Euro or Jap.
(Remember, I didn't actually play with any of these, thay are just very popular options +research on forums, if you want a better idea on the rackets, contact
@greenbeanmachine )