With a real pitching deck, movlas is probably rigged, and it requires a whole lot of help from the LSOs. So a bit outside of the capabilities of the coupled ACLS if it's bad. The ACLS spermy (counter-intuitively called needles) moves around quite a lot if the ship is moving, as it is basically just aiming to get the jet in the right piece of sky by 3/4 of a mile......it needs a relatively stable ship to do this without putting the aircraft potentially in extremis from unpredictable deck movement. It does not have the capability to time power inputs to account for the sin wave movement of a pitching deck. That is what the LSOs are doing manually with the movlas lights with a pitching deck. You then fly kind of an artificial glideslope based on paddles manual movements of movlas that yields some pretty unusual transient sight pictures as the deck moves, but the goal is to fly a stabilized approach not chasing the highs and lows, and arrive at the ramp when the deck is flat. I have actually never known anyone to fly a coupled mode 1 (though obviously it has been done before), let alone into the wires with a pitching deck. In short, it is very seldom used capability, though presumably one that will be used within some limitations for the UCAS.
