screwing with wind so it's 50mph alternating N and S every 2K didn't stop the allies from coming into the target with 10 boxes of 22k B17s, and over a dozen tempests at 26-28k, and over a dozen p51Ds equally high...
Try a down draft next time?
Edit:
AND get rid of the alt-monkey inducing air spawns, if they were the culprit.