Make sure you are using the Cox fuel, or as much Nitro as you can, it may have been 30%. I know it likes more than 20%. If you don't have enough nitro, you may have to shorten the lines to get the speed you need to keep the lines tight. I always ground launched, pointing the nose to the outside to keep the lines tight. You have to use the correct line, as the wrong line will give mushy control. Getting the engine really tweaked to the highest speed possible will give you a little "boost" when you run out of fuel, I used this to bring it down, the rest is up to keeping it under control at speed, dive it to keep speed up, wait until the last second to flair for landing.