Hi guys What's best to do when flying a 129" F3J bird at 30 m/h winds ( almost FAI wind speed limit ), in order to improve flyability: 1) Add ballast, 2) Advance c of g, 3) Try thermal or fly it as slope soaring, 4) Just add down trim. Any other idea? TIA. Claudio Costa. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]