If what you wish to achieve is using one servo for each half of a seperated elevator I just use a Y harness. However, this is fine if both servos are mounted side by side,BUT, if they are on opposite sides of fuse then you will have to use a reversing Y. Althought this can also be achieved by using a Jr servo on one side and Futaba on other. They rotate opposite to each other. This is a handy trick from time to time. Just carefully check your throws on each.