Wow, it's great to see so many aviation buffs around here ... those are some nice rides. Jack a friend of mine has a UPF-7 identical to the one you have pictured, his Waco and another friend's Stearman are the only old school biplanes I've flown but I have a couple of hundred hours flying the Gruman G164 Ag-Cat. Several years ago I did some work around the Homestead, Fl area and had a chance to meet Curtis Pitts and saw a sevral of his airplanes at his airstrip there in Homestead, he was really a neat guy.
Here's what I took my biennial flight review in last week, this belongs to a pilot who works next door to our service, it's an Extra 300...
