>>6770703I hold a CPL + MECIR, 3400hrs TT including about 1000 multi turbine (King Air 200.)
For the average weekend warrior, the CPL program isn't going to add all that much.
An aerobatics endorsement, however, will teach you a great deal (including unusual attitude recovery that used to be part of the PPL syllabus 40 years ago that isn't now), which could save your bacon one day. And it's a hell of a lot of fun.