Tango, haven't heard of that letter before. Have heard of them finding people had less than required mins and booted them from training, but obviously you don't fit into that category. Honestly, if I were you, I'd call or email one of the girls in PD and specifically ask. It's been my experience that they are more than willing to help and answer any questions. If that doesn't work post again here and I'll ask one of the chief pilots if that is a standard letter or what. Good Luck.