Cho Chikun 9-dan is famous for his ability to deeply invade his opponents' moyo and then save his weak groups. A most recent example is from the Japanese preliminary tournament for this year's Fujitsu Cup, where Cho beat Kataoka Satoshi 9-dan to earn himself a Fujitsu main tournament seat. People are talking about something like that 'you will lose a game if you have too many small groups'. This is quite true most of the times. However, Cho does not seem to care about this, as can be seen in this game. For us amateurs, it is probably not a good idea to emulate his style.
I'm not sure I agree
I'm not sure I agree completely. In one sense, if you think that Cho's style is all about making weak groups, and you seek to emulate just that part, you'll get in trouble. But pros are hard to emulate in general. If you try to "emulate" Takemiya Masaki or Lee Changho, you'll just get into a different type of trouble.
I just can't believe that any pro of Cho's caliber can be considered a bad model, as long as we amateurs keep in mind that we don't understand everything.