Afraid I've nothing new to say on the puzzle.
Gazzar, I really hope you get some relief, whatever works. Whisky usually worked for me,
Rad, yes, I think you're absolutely right. In many respects it's an excellent puzzle, but unless a lot of us have been incredibly stupid, it does require about 80-90% cold-solved before further progress. And really that isn't what a crossword is all about, in that in general the entry for one answer contributes to the solving of another....
Last, but not least, after all his contributions today, I hope that when he returns S_Pugh can spare a few words for Keepatit.