If we look at the Ukazawa Sensei who Hunter provided the link to, when we get to the level of application, you see the problems I said i worried about. While his karate/kung foo look great, and the exercises are fine, the aikido style throws don't look that good to me. There's a tendency to have to sweep or take a long time or use force because the momentum in Uke's body is gone. There is a place where Karate and Aikido overlap. Saotome Sensei shows that side as well. So he does some of the applications shown on these and other videos of Ukazawa Sensei. But the parts that look more like Aikido just don't look very good to me compared to most "modern Aikido," they take too much effort and too long to execute, his movement is not open or free, and don't look like they would be ideal in group attack situations. The Daito-ryu anniversary footage looked better to my eyes.
I don't know if this Sensei is a good representation of how other IS people like Harden invision application.
I assume that people interested in the application of Chinese arts to Aikido have read Sugawara Sensei's books on the topic.