I use the 18-6W on my 1.60 with my u-can-do and my 1/4 scale planes. Awesome power and accleration but tons of torque so hovering can be tough at times because it wants to torque roll all the time. i think i am going to try a 16-8 actually to cut down torque. If you try the 18-6 watch the RPM's though cause you will seize your engine if you go over 10,000.