Send Clowns,
I've just checked my copy of 'LASORS'. You are right - I was wrong - but then so are you! I have just counted 7 written exams for the IR, (not 9).
Nevertheless, my main point still holds. With the CPL you only have to get through 9 subjects in your six sittings for CPL instead of the 14 required for ATPL; and you get another six sittings if you later decide to take the SEVEN papers required for the IR. Thus, if you do not have an actual need for an IR, why take one?
Very best regards,
BroomstickPilot