What is recommended for getting to CDG (Terminal 2B), leaving Paris at, say, 8:30-9 am on a Wednesday? Our closest train station is Montparnasse - about a 20 minute walk to it. And the metro stops Babylone and Rennes are close to us. We would like to arrive at CDG around 10am.
We will have a small rolling bag & small backpack each. Will the metro still be in rush hour at that time? We have done the metro with rolling bags so we understand stairs, etc.- the concern is more about any 'packing' crush there might be in the cars at that time.