Sam Chin, head of the family internal martial art of I Liq Chuan, is teaching a two-day workshop in Southern California in January. It would be an excellent opportunity for you to experience IP (and aiki) firsthand. Many of his workshop participants are students of aikido and Daito-ryu. He will give anyone who asks a hands-on opportunity to feel him demonstrate what he is talking about.
A sooner option is December 8th & 9th in Oakland, I'm making the trip from Seattle. Sifu Chin will be at this seminar.
Bernie Langan is an ILC instructor and host of the December seminar, his bio of experience is impressive and would be a great person for anyone to discuss IP/IS and play with.