One thing I noticed that's very different between Japanese and Chinese martial arts, is that in Kung Fu (at least Shao Lama KF) you disengage contact between many attacks and defenses in rapid series, where in Aikido, you maintain contact with uke throughout a technique.
Interestingly, when disengaged from your opponent in KF, you don't lose as much feedback as you'd think. Somehow you maintain some spatial awareness or something as a result of being "in the personal space" of your partner. As usual, I'm not quite able to articulate this, but I know Mike S. is going to come along and do it for me if I get him started.
I miss Chi Sao!