David, Sorry to hear the luck you've had with your LongEZ. I see you fly from a paved runway. Is there any chance you pull up to soon and stalling the LongEZ? I know models accelerate much more quickly on pavement. Its really easy to over control the steering often resulting in a fast pullup to avoid running off the runway. But the LongEZ requires a good amount of speed to fly. Might I suggest that you tame the nose steering some and let the model build more speed. I know I struggle every time I go to a club that has a paved runway. I fly from a grass runway and it takes about 150-200 ft of takeoff roll for my LongEZ to get flying speed. Hardly any up elevator required to take off, it almost just lifts off on its own. I also have a lot of Expo(70%) on the elevator so it's really soft around the neutral postion on the transmitter. What amount of throw do you have on the elevator. Mine is about 1/2inch in the down position (up elevator on a canard/ back stick), and about 3/8 inch in the up position (down elevator on a canard/ forward stick).

Don't know what kind of radio you are flying, I fly a Futaba Super 8, but a trick I learned from the jet jockeys is to use one of the knobs for taxi steering and the left stick for highspeed takeoff runs. You do this by plugging the nose gear servo into one of the channels that uses a knob(I use channel 8). Then mix this channel with the rudder channel. Set the mixing so that the knob moves the nose gear a lot for taxiing on the runway to and from the pits. Then switch the mixing in before take off to reduce the amount of travel on the nose gear for a smoother take off run. You can taxi with the rudder stick if you want, it just takes the whole runway width to turn around. I use it on any of my models that require a lot of airspeed for takeoff. The Expo feature could be used on the LongEZ because there are no rudders, maybe your first option. The other plus is that you can center your nosewheel easy by the knob(Ch8). I mark the center of this channel on the ransmitter knob so I can set if back to Zero before I take off. Just be sure you dont bump it during the flight as it can be a quick exit off the runway upon landing if its way off.

Hope you get it back to flying shape soon.

Pete