I am the technologist in question 14. Once I’ve completed my initial requirements, can I independently perform both screen-film and FFDM examinations?

No. Because your initial training was only in screen-film, under MQSA you are qualified to perform only screen-film examinations independently. In order to perform FFDM examinations, you will need to obtain and document eight hours of training in FFDM.  900.12(a)(2)(iii)(E).