I have in my cabinet a Cuisinart DLC-7 super pro food processor that has a broken blade stem. I've been patiently waiting while browsing thrift stores and yard sales to find a new setup to replace the parts on it. Today I bought a CFP-9 and I'm wondering if anyone knows if the blades and bowls are interchangeable on these two units. I'm hesitant to try it because I don't want to break anything. Thanks!