I don't really understand your question? How does flying to CDG impact a decision to carry on or check a bag? Always carry on if you can. Avoid checking bags if at all possible. If it's not possible to avoid checking a bag, then check a bag and don't worry about it.
I avoid checking bags on Air France and at CDG with an absolute passion. There are just way too many unannounced strikes - especially by the baggage handlers - to take a chance. One time we couldn't even land at CDG because the baggage handlers were on strike and lying in the runway...fun times.
I don't see why you would even consider checking if you are able to carry on. Wife and I just did 10 days in Europe with carry on and I won't ever check bags again.