I was just talking to someone here who said that if u do a ME rating on a PPL, u will have a PPL with a ME rating, and if you wanted a ME rating with the CPL in mind...u will basically have to do it all again for the CPL....
Not true under JAR. Any rating on your PPL carries over to your CPL if it is valid at the time you apply for the CPL.
For instance, you could do the CPL/ATPL ground exams, then do the MEP, then do the IR. You know have a PPL with ME IR. If you then do the CPL course they reduce the hours by quite a bit since you don't have to do the IF part of the CPL course anymore.
Gerard