Ease Release 200 is the only silicone release agent we use in production of silicone parts. These parts are made from the Dragon Skin series, Eco Flex, some Wacker, GT Products and a few out of Polytek's materials as well. Molds are also made from Reynolds' silicones, mostly the Sorta-Clear. The only silicone mold material that has ever given me trouble when releasing has been the Smooth-Sil 960.
The only thing I would use petroleum jelly for would be to part plasters when pouring urethane rubber into them.