To remedy this, the Flaps 40 setting was physically blocked on all TWA 727s
Each to his own ... unless the memory is failing, my recollection is that the 100 was always an absolute pussycat (ie land it like a C150) and the 200 not all that different for 30/40 other than for one's having to preprogram the mindset to the flap setting .. as I recall, other than for really gusty conditions, 40 was no great problem .. but, of course, for the 200 ... flare too high and not recognise it .. and EVERYONE on board knew all about it a few seconds later ..