Whats contained in the ground school? Full system knowlege or is it mainly based on the pushing buttons of the avionics?
Ground school was partially a basic sim to practice buttons as well as the theory of the back up systems and redundancy of systems etc, to be honest a lot at the time went over my head and was quite over whelming which is why I could have done with more hours.
The CPPP's are great because you can choose between different areas you want to work on, avionics, weather, CDM, avionics, engine management etc plus another 5 hours practical flying on what ever skill area you choose.
Also I think some transition training offered falls well short of what is required, there are some very good Cirrus instructors who are passionate about passing on their knowledge but I have had checkouts or BFR's from some where to be frank they are lacking and I feel sorry for their actual students.