Ive decided to go back to using my futaba servo synchronizer since the speeds werent equal on seperate channels... HOWEVER>.... When Ihad the dual elevator setup through the radio...I WASable to use the trim tab and BOTHservos would trim up or down as ONE unit....and you also had the subtrim for each individual servo. Itriple checked to make sure Iwasnt going crazy....unless maybe I have the only TXin the universe that will do it.