Hi Guys Well today was quite eventfull,first off the fej F16 flys ok,with the c/g at 135mm it felt nose heavy and with the change on the web site this confirms my feelings,i had low rate on elevater set at 35mm each way with 40% expo this would have made it worse,it felt dead but was effective enough,i had problems with one tank which was leaking badly around the bung and decided to fly a short flight with one tank,i did around three circuits at quite a high altitude in case of flame out which it did but the landing was ok as i made it back to runway.I never had time to get the wheels away so speed was really not attained.In conclusion i will now move the engine even futher forward and remove the lead,also set the c/g up at 140mm regards Keith The other F16 is the cemark model the engine is much futher forward in this and it weights around 3lbs lighter but it has film covered wings no doors much lighter retracks but flys very well