>I'm told by my co-workers that this does not work properly, or reliably, and they have been adding fields to the end of table structures as a workaround.

I just tested it and it works correctly. However, as noted in the documentation, there's one scenario that isn't supported:

"SDT doesn't support the following scenario: you have two long field names that have the same first ten characters (such as "CountryTaxCode" and "CountryTaxStatus") and you rearrange the order of the fields so that the one which appeared later in the table now appears before the other. What happens in this case is that VFP changes the name of the field in the DBF file (which is only ten characters long) without SDT's knowledge. As a result, when you use the Update method to update the table's structure, the contents of these two fields will be swapped. Since the order of fields in a table shouldn't be important, avoid doing this."

>Is SDT still supported?

Yes.

Doug