Kobayashi aikitaiso : http://kielce.aikido.art.pl/aikitaiso.html#taiso
This gives you an idea about the Kobayashi taiso;
The rowing exercise, when the arms are forward, they are not on 1 line. In Tohei's model the hands are on 1 line when forward.
Kobayashi stressed to start movement from the pelvis. Some of the taiso are designed to create a better use of the pelvis, or maybe it is better to say with the chinese word kua.
How he used his body you can see : http://www.youtube.com/user/nicoaiki.../0/AALpKk8ipCI
There are more clips of Kobayashi on the channel of this uploader.