Yesterday was my first time pouring my own jig heads and they kept slipping out of the grooves on me. Is there a way to keep them put or is it just something that will get better with experience. I do know that the tips of my fingers got pretty warm trying to maneuver small hooks back into their spots. I was thinking about setting my mold on large magnet, would that help them stay put once I get them in there? Thanks in advance.