No I haven't, I didn't buy them to be fair, they were on the van when I bought it, I cant see why they wouldn't work but just don't switch over even on a deserted country lane.
It’s a long shot, but it’s possible the lights were installed with a loom to force the dips on when the mains are on instead of coding it properly. If so, there’s a chance that this interferes with the assist in some way?