whats going to happen if i use this code

I am still fairly new to programing and i have a few ir rangers that i
want to use on my robot. I have hooked one of them up to the OOpic's
regulated supply voltage and i would like to know in advance if this
program could tell the servo's to move in two directions at once and
possibly screw them up

' This program reads the Sharp GP2D12 sensor
' It demonstrates the use of an oA2D object
' and an oDio1 object.


'this is an expiremental program that uses a singel ir ranger
' to make the
'robot turn left when it reaches something, i hope it works
'------------------------------------
Dim irf1 as new oA2D

Dim S1 As New oServo
Dim S2 As New oServo
Dim CenterPos As New oByte
Dim x as New oWord
Dim y as New oWord

 '-----------------------------------------------------
Sub Main()
OOPic.Node = 1
CenterPos = 31
Call Setup
Do
    S1 = CenterPos
    S2 = CenterPos

Call GoRight
y = 100
Call Delay

Call GoForward
y = 100
Call Delay

Call GoLeft
y = 100
Call Delay

Loop

 do
                if irf1.value > 100 then
                        Call GoReverse
                else

                end if
        loop

End Sub

Sub Setup()

S1.Ioline = 3
S1.Operate = cvTrue
S1.Center = CenterPos

S2.Ioline = 12
S2.Center = CenterPos
S2.Operate = cvTrue
S2.InvertOut = cvTrue

Oopic.ExtVRef=0
irf1.ioline=8
irf1.operate=cvtrue

End Sub
'--------------------------------------- -----------

Sub Delay()
For x = 1 To y:Next x
End Sub

Sub GoForward()
S1 = 0
S2 = 0
End Sub

Sub GoReverse()
S1 = 53
S2 = 53
y = 100
Call Delay
End Sub

Sub GoRight()
S1 = 53
S2 = 0
End Sub

Sub GoLeft()
S1 = 0
S2 = 53
End Sub