I really suggest going to the source which is the Shodokan web site. Several articles and diagrams from Kenji Tomiki himself.
The two most relevant to the question are the diagrams
http://homepage2.nifty.com/shodokan/.../kousei_e.html
http://homepage2.nifty.com/shodokan/.../hatten_e.html
and the article
http://homepage2.nifty.com/shodokan/...jyuturi_e.html
It is clear his main division is in the distance between opponents. I have never heard a division of aiki versus non-aiki in the techniques taught at the dojo but it is a question that may be worth asking.