Have to admit I've never looked at the Pratt books. But CAP413 is the only place to learn R/T for the exams. There are some differences between CAP413 and Thom, and in these cases CAP413 is what the exam is based on - I assume that Pratt is similar.
As for "real life", in general you can do what CAP413 says and it will work. The only real exception is the position report - I've never heard a "correct" position report, and I've spoken to one pilot who tried it just to see what happened, and reported that the LARS operator didn't have a clue what she was talking about!
Local procedures to tend to vary from one airport to the next. A bit of local knowledge often helps you do the same thing as the locals when visiting a field which you know. But if it's your first time at a new field, follow CAP413 and you won't go too wrong, in my experience.
FFF
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