Gadgeteer Servo Code Bugged

 Debug.Print("Program Started");
            GT.Interfaces.PWMOutput servo = this.extender.SetupPWMOutput(GT.Socket.Pin.Seven);//Servo motor 1 defined to PWM pin 7
            servo.Active = true;// seems to just turn the servo 'on'

            GT.Interfaces.PWMOutput servo1 = this.extender.SetupPWMOutput(GT.Socket.Pin.Eight);//Servo motor 1 defined to PWM pin 7
            servo1.Active = true;// seems to just turn the servo 'on'

            GT.Interfaces.PWMOutput servo2 = this.extender.SetupPWMOutput(GT.Socket.Pin.Nine);//Servo motor 1 defined to PWM pin 7
            servo2.Active = true;// seems to just turn the servo 'on'

            while (1 == 1)
            {

                 for (UInt32 hightime = 600; hightime <= 2000; hightime += 72)   // got this part online - can't figure out what it actually does, somehoe difines the range of the servos from 600 to 2000
                 {
                  servo.SetPulse(20 * 1000 * 1000, hightime * 1000); // From what I gather the first bit is the pulse speed in miliseconds, and the second the strength of the pulse

                  System.Threading.Thread.Sleep(100);

                  servo1.SetPulse(20 * 1000 * 1000, hightime * 1000);

                  System.Threading.Thread.Sleep(100);

                  servo2.SetPulse(20 * 1000 * 1000, hightime * 1000);

                  System.Threading.Thread.Sleep(100);

                  Debug.Print("High Time= " + hightime.ToString());