b/c i only have my foamie right now i dont like anything over 10mph. i have flown in stronger, but the foamies do like to run away. especially when the prop flys off and youre plane is about 200ft away downwind (happened the other day) if you know you can keep it out of the weeds, id say go for it. a good pilot knows how to fly....a better pilot knows when to fly.