Sorry, John - this guy teaches chojiao (搓脚), not chuojiao (戳脚)
(see page 3 of this thread for details)
It is true that chuojiao is quite a cool style, though - seems that there are a lot of chuojiaofanziquan people in Beijing, for example. Lots of great kicks, many of which are not in taekwondo (such as yuanyangjiao); as a result, some xingyiquan styles (i.e. Che style from Bu Xuekuan) and many baguazhang styles tried to absorb the kicks of chuojiao as well.
I would agree that the "leg specialists" of CMA would be the chuojiao folks.
It is rather hard to find a chuojiao teacher, though, I think (I don't think anyone taught chuojiao in Taiwan, for example).
Interesting that chuojiao people were as interested in fighting as the xingyi guys!