Pulling out the switch does turn on the 'bright' output on the rear fog lamp.
As I have no loom for fog/spots at the front, I couldn't tell you if the LS uses that function for the spots at the front.
BTW, the kit you have has the seperate switch in the demister area, not hard wired
back to the main light switch.
Warren fog/spot same diff' to me, when we're talking 'at the front'. Mind you the reflection in fog is pretty bad with spots on.
$100 for looking cool!
Youch!!!