I will visit a seminar of Ikeda sensei next weekend. Never met him before.
And I never "met" IS/IP like you teach it and like it is discussed here so often. Just know this issue from reading here.
Can I get an impression of what you are talking about by practicing with him? (Or by watching him.
I don't expect giving ukemi ...)
To what do I have to pay attention or watch out for?
Can you guide my eyes or even better my feeling , my attentivness?
I would second what Janet said. He is basically doing the same things, though IMO you'd have some difficulty figuring out what he's asking you to do without some previous IS/IP experience.
Do not be shy about trying to get some hands on time with him.