a bit 'firm' with them. With the Carpenter seals, the only thing that would shut them was a blood-curdling slam. Sadly, peel yours off, and get Tims.
If you want to try this trick, it might save you removing the old seals: Take a VERY sharp razor, and put a light slice in the interior (perimeter) side of the Carpenter seals. This may just allow them to compress a bit better, and the door shut easier. Do a bit at a time to see what kind of result your getting.