Don't have hard data but I'm pretty sure Steve Henry is still running the Luga on his Yamaha powered Highlander. It is three blade and he was very positive about the prop.
Another prop I am considering for my Just Superstol is a Duc Helices Flash 3 blade. Can't find a lot of info but they seem to have excellent all around performance, good or very good pulling on take-off and about 10 mph higher on cruise than some other competitor props for the Superstol (it needs all the help it can get on cruise lol)
Good thread over on the Wings Forum on the Duc. Keith Showwalter out of Anchorage is running one on his Just Superstol and speaks highly of it. Link is http://www.wingsforum.com/viewtopic.php?f=218&t=24080

Take Care,
John Cooley