I built this because I needed it to fit in a small space, which the swing-wing design facilitated. I had intended a fairly shallow angle, but when I put it together, they swung right into place against the 45º slopes and looked great. The nose was a bit tricky, because all the inverted slope fronts narrow at the front and would have left a gap. So I turned over a regular 3-way slope and held it all thgether by technic liftarms.