Originally Posted by
rudestuff
What is this quantum leap? If a PPL holder has been trained to a high standard then the CPL is just a formality. I found it very similar to the PPL - navigate a bit, fly through plane and do the maneuvers.
You are quite correct in saying a well taught PPL will find the transition a straight forward process.
For those who are taught to an indifferent standard, and/or perhaps don't have the necessary (natural) ability are going to find it a struggle. A quantum leap would be required to reach the standard.
Not everyone is as fortunate as you when undergoing professional training. Where did you do your PPL training?