What are your experiences with plastic molds? What would you suggest as a releasing agent?

If you are talking about the one piece hard plastic molds like those sold by Barlows no release agent is needed. Just let the lure cool down a bit and it lifts out without any problems.

When I use my homemade Bondo molds I spray them with garlic before I pour the plastisol in. It makes them easier to get out and adds some stinkum.

On a PVC plastic mold, I used a spray vegtable oil, like PAM.

Thanks guys. Just getting started and can't wait to get my first baits done.