The only things I did extra were to make the fuel tank removable and using 4-40 pushrods instead of the nylon rods. If I recall correctly, I widened the hole in the bulkhead to be able to pull the fuel tank thru with the strapping tape I secured on to it. Mine came out heavy, but flies like a dream with the Saito 100. The stock landing gear is a little soft, but looks good all polished up. Taking off is easy, as long as you use the rudder and roll into the power smoothly and gently. If you hammer the power, you will have problems every time.