Thank goodness for a bit of sanity and civilised debate here. Having finished the puzzle at the weekend I did wonder about some of the resulting entries, but I guess cluelessJoe is right - a grid in which real words resulted after all those movements would be impossible to achieve (BTW, thanks for your comment on the other thread, cluelessJoe). It might be possible with an assymetric grid, but I wouldn't like to try.
In the course of making the movements (and deciding exactly where to place them) I noticed that a key name began to emerge, which sidetracked me briefly.
A good puzzle - novel theme, some lovely clues and discoveries to be made at the end, thus sustaining ones interest throughout.