This will not reverse it,since the servo still rotates in the same direction .It will only move the control horn either closer or farther away from the control surface.If you are using 2 elevator servos,you can either use a reversing Y-harness or use 2 seperate channels on your radio,if it is capable of doing this.You can also use 2 different brand servos as long as they rotate in opposite directions when
controlled.such as a JR and Futaba servo does.
What brand radio is it?PNP radio does not tell us much.Need to know what brand and series it is.what servos are you using.
A little info can go a long way in helping you.