If you've got EF access, there's a great tool in Travel Information that will let you put in your proposed routing and tell you if it meets the MPM for your chosen carrier. In the fare section, there's a routing rules column that will tell you the ticketed point deductions. For example, a lot of TATL fare rules will give a TPD of 600 miles for travel via PAR. This means if you connect in CDG, you can travel an extra 600 miles.