You can find it all at Central Hobby. Here is an aileron set up with the aluminum control horn, titanium 'pro link' and Dubro ball link. Combined weight on this is two tenths of an ounce. I just finished up two 8 inch elevator rods and two aileron linkage. With horns and all connectors it only adds one ounce to the plane. It dosn't get much better than this. All servo arms are SWB aluminum with holes threaded to receive 4/40 ball links. They feature the 'dual lock' fastening system. Joe