I had the same problems initially, until i started using spoilerons as per Opjose's suggestion. the plane handles better, and seems more stable in slower speeds with the spoilerons. what i usually do is on downwind approach for landing, i use about 1/2 throttle and take her far down before i make my turn into the final approach, when i use only 1/4 throttle. i level the wings and ensure that the glide rate is satisfactory, and i cut throttle as she crosses the threshold of the runway. at this time, she is about 3-6 feet off the ground and committed for landing. on touchdown, she rolls about 200 feet before she stops, and this in on a concrete runway. anyway, anybody have problems with the plastic cups fitting properly into the retract wheel wells? i did, and it bothered me, so i just used 2mm balsa to plank the entire retract area, making it clean and perhaps more aerodynamic.