Prince of Darkness has about 6 pitches and needs a ton of quickdraws to complete (I didn't climb it, but a friend nearly ran out). I don't think there are many other routes beyond 6 pitches that are sport only. There are a few other longer routes but it will be a mix climb. Unless you are super ballsy and like long runouts. I would look at other climbs around Prince of Darkness in the Black Velvet canyon area for the sport climbs

jeff