ok, if i go brushless,An Axi 4130/16 is for an "aerobatic"- 4kg plane. And the axi is the same as a 8 - 10 ccm / .54-.60 -2stroke .70-.80 -4stroke. Thats what confuses me. i always overpower my planes, but i want somthing sunday-ish to fly this time i understand that the airframe may need the weigth of a 120, but i may also move "stuff" upp in the nose.