Dont tempt me im on my 3rd one of the first batch However the evolution 58 I ran in my 2nd one was a beast to keep upright on the runway. I learned fast if the plane is on the ground I was on the elevator. I did go to a 4" wide foam tire and balanced it as far to the rear as I dared I think some one said 6 and 3/8 back was the max i was close to 6" if i recall on that one The current one I am flying is a DA-50 setup and is far more enjoyable to land. The evolution was at least a pound more up front and yes I flipped it over many times. If Tom only knew the abuse i give his planes.