We know what Blueyonder means about the awkward position you have to adapt to pull the second slat in place. We do it together and then my young wife kneels on the first slat whilst we get the second one exactly right.
We don't have great problems putting the bed up and down, which we normally do everyday as we like using the large table if we are inside in the evening in cold or wet weather. Whoever made the comment earlier about lifting the beds high before trying to pull the slats out is exactly right. As I'm getting increasingly in need of an afternoon nap in my dotage (or through too much red wine at lunch) the long single beds in the 540 are great and we wouldn't swap them for anything. MikeT