Chris,
We are using the F series just for some preproduction brds as they were more readily available. Our production solution is the std F28062. I must say that the speed by which TI have addressed this problem, most noticeable on the website is a hugely credit to their customer support and feedback.
I would personally make a note in the Technical Reference Manual TM320x2806x Piccolo, which is common to all the 6x products, and is the third datasheet down on the F webpage. On page 192, it show the memory map for the 6x, which would suggest that all the 6x and 6xF/M share the same memory map.
Again, thanks for all your help.
Will