'Fraid that is incorrect Mr 0-8. You only need 150 hours total time to start the CPL course - not 100 in command.
Right you are Mr. Keygrip!
The reason I keep getting the 100 hours P1 figure stuck in my head is that during the CPL/IR course you don't get any P1 time. [Though I think you can log the exam time as p1? Can someone confirm that?]
And as you need 100 hours P1 for license issue, I've always planned on starting the course with 100 P1 hours so I can get the license issued as soon as I finish the course.