I too learned allot from my Dad who turned 92 in January. He was not a competitive modeler and he became very proud of my accomplishments in FF. He can't built anymore, nor can he even read, macular degeneration has robbed him of the ability to see much more then general shapes at a distance. Still, he loves to sit and talk modeling and engines, its all he has left now so I need to get there as often as possible.