Former JPen player > 30 years ago and then stopped tt for 20+ years.
Picked up the sport 2 years ago when there was a tt venue in the Makati City, PH.
Dusted my >30 years old Nittaku 1-ply Hinoki JPen (with Senkoh-like handle) and replaced the dried up Shriver rubber with new T25. No RPB.
Then, the EJ-ing started with TSP High Large II SR with Super Spinpips. Both blade and rubber were mistakes; they were not for me.
Replaced rubber with R50. Much better but still didn't like the balsa blade.
After some practice with coach, decided to convert to shakehand and sold the Nittaku (which I regretted).
EJ-ing got worse with shakehand (e.g. Darker, Kokutaku, Loki, Nittaku, Stiga, Tibhar, ...) and rubbers (e.g. D09c/80, H3N, H3PBS, H8-80, KG10, M2, O7CG, R48/53, VTDE, ...) . After wasting a lot of $, decided that I prefer all wood blades (for feel) and had to use Tensor softer rubbers (due to injuries), even though I prefer hard Chinese rubbers without boosting. Hence, 'looking' at all wood blades now and considering those available at TT11. (e.g. Nittaku Kasumi/Latika/Violin, R+B Ruby, ... <6mm. Temporarily ruling out the likes of Infinity, TSPW, ...)
But I did buy a JPen because I miss the 1-ply Hinoki feel (which I couldn't find in 1-ply shakehand) and will return to it when I 'master' shakehand. Hence, I have a Hibi-O Tour with O7CY and a beautiful G-Max waiting at the store for me (because it has 'perfect' straight and compact grains).