Reverse Ice

[Gummi_Bears]

Im making an ice escape map where theres different kinds of ice. If you're on reverse ice, then if you target a point you should turn to the opposite direction you clicked. My trigger for this doesnt work...help. Not sure why, but if I spam click on reverse ice I dont turn straight but on random angles. Any way to prevent this? Or change my code so reverse ice works? Help appreciated.
*edit* Oops...wrong place..misclicked warcraft talk and warcraft help D: how to delete?

Basic Settings
    Events
        Map initialization
    Conditions
    Actions
        Set S_Terrain[1] = Northrend - Snow
        Set S_Terrain[2] = Northrend - Ice
        Set S_Terrain[3] = Icecrown Glacier - Dark Ice
        Set S_Terrain[4] = Icecrown Glacier - Ice

Sliding
    Events
        Time - Every 0.02 seconds of game time
    Conditions
    Actions
        Unit Group - Pick every unit in (Units of type Demon Hunter) and do (Actions)
            Loop - Actions
                Set S_Pos = (Position of (Picked unit))
                If (All Conditions are True) then do (Then Actions) else do (Else Actions)
                    If - Conditions
                        Or - Any (Conditions) are true
                            Conditions
                                (Terrain type at S_Pos) Equal to S_Terrain[2]
                                (Terrain type at S_Pos) Equal to S_Terrain[3]
                                (Terrain type at S_Pos) Equal to S_Terrain[4]
                        ((Picked unit) is alive) Equal to True
                    Then - Actions
                        Unit Group - Add (Picked unit) to SlidingGroup
                        Set S_Pos = (Position of (Picked unit))
                        Set S_Point = (S_Pos offset by 7.00 towards (Facing of (Picked unit)) degrees)
                        Unit - Move (Picked unit) instantly to S_Point
                        Custom script:   call RemoveLocation( udg_S_Point )
                    Else - Actions
                        If (All Conditions are True) then do (Then Actions) else do (Else Actions)
                            If - Conditions
                                (Terrain type at S_Pos) Equal to S_Terrain[1]
                            Then - Actions
                                Unit - Kill (Picked unit)
                                Unit Group - Remove (Picked unit) from SlidingGroup
                            Else - Actions
        Custom script:   call RemoveLocation( udg_S_Pos )

Slide Turn Reverse
    Events
        Unit - A unit Is issued an order targeting a point
    Conditions
        ((Triggering unit) is in SlidingGroup) Equal to True
        (Terrain type at (Position of (Triggering unit))) Equal to S_Terrain[4]
    Actions
        Unit - Order (Triggering unit) to Stop
        Unit - Make (Triggering unit) face ((Angle from (Position of (Triggering unit)) to (Target point of issued order)) + 180.00) over 0.00 seconds