I’m sure spending time with him like that probably gave you the opportunity to see elements of Poliquin’s work that never make it into print for the general readership.
I’m curious to know what he was like personality wise. In my one encounter with him he came across as an arrogant jerk to be blunt. I’ve heard the same from many other people, but I’ve also heard that outside of a seminar setting he’s much more down to earth and pleasant to deal with.