The point is, some runways in the network of airlines have an off-set LOC of 3 degrees like JFK rwy22R, (LOC 222 and rwy 225), and so the LS button is not a good idea to try and follow when it is offset behind you, although all the lights are good for low viz.
Errrr...runways with offset localizers will not be designated for LVP operations. Also, the lightings need to better or at least equal of Cat I standards.
