I also plan on attending. I attended one of Hendricks' Senseis weapons sessions at the Aiki Expo 2 years ago. I don't train in Iwama style, so was not familiar with the specific ken and jo forms. She took the time to give me a little personal instruction and was complementary at the same time. I was impressed and ended up attending a couple of her other sessions that year and at this years expo.
Her teaching skills are exceptional and her technical skill is impressive.
Finally, I have attended McVey Sensei's dojo in Yellow Springs as a guest. I found his dojo to provide a welcoming, friendly, and challenging place to train. How a school treats someone from outside their own "style" says a lot about the quality of the school. Great place to go to a seminar.
Hope to see many new people there!