Many thanks Mike,
I've been getting out of the habit of using Calculations fields, boy is that easy!
No idea that is would calculate every value without a complex string involving GetNthRecord, Extend and a bunch of other functions, another example of RTFM, as it is in there:
Some FileMaker Pro features (like calculation and summary fields, and find requests) include all the values in a repeating field.
Depends on what you need to do with the field; you don't necessarily need to create another field or calculation at all.
FileMaker allows control over the appearance of date fields. You can just use layout mode and change the field display options, and display month name and date.
Unfortunately my data is destined for outside Filemaker (to HTML) so I need to have the dates expressed correctly in the FM table so they leave in the format I need them displayed in HTML. Layout formatting works only in the layout for which it is defined and not in the field definition (from where it is delivered)