Yes, indeed. In fact, I just had a few very enjoyable practices with Jon Reading's Aikido group*, who are also working Dan's stuff--we spent an hour or so on his exercises, then another hour putting his principles into Aikido practice. The only startling thing is how easy it is--once you have the key, the IP/aiki engine slides into Aikido waza almost as though it was designed to be there.
And we had almost as much fun on the mat without Dan as we do with him
* Hi, Andy! And thanks to Demetrio for the push to get us to meet up.