RE: Showtime 4D 90 problem
put a bigger tail wheel on it. i put the biggest sullivan one i could find for aircraft up to 33 pounds. it works awesome. and mine is way tail heavy from the recommended point but still flies stable and awesome.
with a bigger tail wheel the amount it has to move to make the wings paralell to the ground is less, so its already at a flying atitude while on the ground. onece it reaches sufficient airspeed to take off it does so looking very smooth and its hard to tell when it lifts off the ground.