I'm still looking to buy a Pitts S-1. I have a few leads on some planes but wanting to see what else is out there. I've narrowed my search to either an S-1 E, S, or T. Wanting one with a fuel injected O-360. A constant speed prop is definately a plus, but not a dealbreaker if it only has a fixed pitch prop. It would be nice to find one with traditional Pitts wings rather than sparcraft, but it seems that most S1s out there have sparcraft wings.