Pocket square without tie I find utterly bizarre and "wrong way round". Surely the pocket square is farther UP the formality scale than the tie? I accept that this may be a UK/USA cultural difference; pocket squares are, on the whole, rarer in the UK than across the Atlantic, and many (myself included) only wear one (and then only a plain white one) for occasions like weddings and funerals. I also think that the prejudice against the tie (even now) is less here than in the USA, and may indeed be receding.
With this I emphatically agree.
