Harimoto inner has an enlarged head too.
Also w968 was not hugely popular until the 2020s.
ML W968
Fang Bo w968
FzD viscaria
LJK viscaria
Timo Boll viscaria
lin gao yuan viscaria
ZJK viscaria
Liam Pitchford Viscaria
Lee Sang Soo viscaria
Mizutani ZLC inner
Wang ChuQin was viscaria until 2021...