The wind was really blowing hard and I went to my only rocket I had with me that had a streamer. Plus, tube fins tend to deal well with the wind. It did indeed put up a great flight. Altitude was really high for a B4. Would have been even higher with a 6-second delay. It was about out of gas when it deployed but was still going up. Streamer did the trick and I had a fairly short walk for retreival.