Enable & Disable multiple game objects

So I have this so called "super power script" it is just about slowing time, and this is what I have, the time everything works perfectly but when I click Q, the key for slowing time I want 2 plane's to enable themselves, they are the 2 variables. And I have tried everything! Doing both of them seperately the first one then SetActive false, true etc. and I didn't get any errors then but it didn't work. When I started the game 2 planes were enabled at the start and when I click Q the first plane disables, then when I press it again the second one disables, and when I try to press Q again the first plane just keeps enabling and disabling. So I tried doing it with && but it still doesn't work, I'm pretty new at scripting so could anybody help me with this part of the code?

 #pragma strict
 
 private var chMotor : CharacterMotor;
 
 private var superSprint : boolean = false;
 private var superJump : boolean = false;
 private var slowMo : boolean = false;
 private var hawkEye : boolean = false;
 
 var mainCamera : Camera;
 var zoom : int = 20;
 var normal : int = 60;
 var smooth : float = 100;
 var slowmoPlane : GameObject;
 var commands : Texture;
 var slowMoTwoPlane : GameObject;
 
 function Start()
 {
     chMotor = GetComponent(CharacterMotor);
 }
 
 function Update()
 {
 
     //Slow Motion
     if(Input.GetKeyDown("q"))
     {
         slowMo = !slowMo;
         if(slowMo == true && Time.timeScale == 1.0)
         {
             Time.timeScale = 0.5;
             slowmoPlane && slowmoPlane.SetActive(true);
         }
         
         else
             slowmoPlane && slowmoPlane.SetActive(false);
             Time.timeScale = 1.0;
             Time.fixedDeltaTime = 0.02 * Time.timeScale;
     }
 
 }