Well, we had all been "moaning" that the Big L was getting to be the Big EZ ... not this week, mefears! But, after mammoth struggle, have now complete grid and can see all that's going on even if I am not sure of all of its relevance (yet - that can wait until tomorrow) ... Many thanks (I think) to Elgin for a real work-out which, whilst decidedly frustrating along the way, does indeed all fall together in the end.