Got it finally.... I totally agree with Quisling about giving things away and spoiling the fun but in this particular case I don't think it applies. Surely a thread like this, apart from congratulating the setter (which I do, heartily, here) should provide the odd nudge. I suppose the question here is what constitutes a fair nudge and what doesn't. I solve alone whereas many solve together and occasionally I check in when I'm stuck to reassure myself that I haven't gone completely off the beaten track, which is I think what's happened here. Gitto's query wouldn't mean anything to anyone who hadn't got to that point as well, and to those who had it would simply provide welcome reassurance - like a signpost in a dense jungle (or something along those lines, its too early...)