Trouble with math.Approach in CalcView

[vingard]

Hi, I am working on a gamemode where the player runs into a physical football. When this happens the camera starts to jutter quickly due to the player colliding with the ball.
This is the code I have: (I used math.Approach to try to smoothen the stutter caused by the collisions with the ball)
function GM:CalcView(ply, pos, angles, fov)
    if cameraMode then return end
    local trace = {}
    local view = {}
    local distance = 110

    trace.start = pos
    trace.endpos = pos - (angles:Forward() * distance)
    trace.filter = LocalPlayer()
    local trace = util.TraceLine(trace)
    local current = current or trace.HitPos:Distance( pos ) - 10
    if( trace.HitPos:Distance( pos ) < distance - 1 ) then
        current = math.Approach(current, 159, 1)
    end
    current = math.Approach(current, distance, (distance - distance) * FrameTime() * 10)
    print(current)
    distance = current
    view.origin = pos - (angles:Forward() * distance) + (angles:Right() * 40)
    view.angles = angles

    local speed = ply:GetVelocity():Length()
    view.fov = fov + (speed/28)

    return view
end
But seems like I fucked up somwhere and it acts exactly the same. Does anyone know where I have gone wrong?
Cheers.