RE: Reducing weight 4*60 tail
Do you mean elevators and rudder? Maybe you are talking about the ARF? I built a kit and the horizontal and vertical stab are built up. I tapered all of my control surfaces from front to back down to about 1/16". That got rid of some weight and made them look much less clunky. I used an OS fs-91, cut off the cheeks and used a fiberglass cowl on mine, it was a bit nose heavy until I moved the battery back into the fuse behind the wing.