Dion is going to be great to fish with. He is a VERY down-to-earth kind of guy. His whole entire family is great. He stopped by in the SolarBat sunglass booth I was working in a few years back at the Bass Masters Classic, and he just stood there shooting the bull with us forever. He answered every question we asked, no matter how big or small. He joked around a bit, and was very fun to be around. I envy you getting to fish with him. Soak up every bit of fishing knowledge you can get from him - however, you may learn more by keeping quiet and just watching him closely, than actually asking him questions. Sometimes, it's better to learn from observation, and I'd be willing to bet you will learn a lot from him.
All the best,
Glenn