Yup, I had the 60 size Kangke too. Changed the rudder to a pull-pull and upgraded the elevator pushrod to carbon fiber. The plane flew like a tank with a Saito 1.20 and I was thinking about retiring it. Then on a whim, I replaced the engine with a OS .91 surpass I had laying around. After that it became my favorite plane. Knife edges where a breeze and it flew extremely well. I was using it to practice the IMAC manuevers and lost it due to a failed clevis on the pull-pull. Put a good not to heavy 4 stroke on it and you will be a happy camper.

The landing gear is kinda flimsy and doesn't take rough landings well, the wheels are a little to small for thick grass and the hardware is kinda chinsy but the plane itself is very well built and flies like it is on rails. If you choose a Kangke replace all of the above and you will like it.

I am going to replace mine with the Vector flight though because I kinda prefer sheeted foam wings and the vector is cheaper.