ComCity, What do you think would be better to fly in the wind? A 10# 1/4 scale Extra or a 13# 1/4 scale Extra? I think the heavier would be a lot better. On final for example with a 10MPH steady wind. All at once you get a extra 10MPH gust. The 10# model will flair up more than the 13# model. I cant give you the science but I have felt it on the sticks. Later David