I tried the silicone molds, but never liked the baits from them because they didn't seem to get as firm as those from aluminum to me. This could have all been in my mind however. I got rid of mine, but if i buy any more they'll more then likely be the composite ones. I have some of the artificial stone molds & the finish isn't as bright & shiny as the aluminum molds, but they make very good lures. You can tweak your recipe & make them look pretty much identical. I make a lot of jig trailers out of them & make colors like zooms ruby red, sapphire blue, green pumpkin & rootbeer pepper green & they look just as good & pretty much identical to them. The do-it essential series molds are also a very good affordable option. The lures won't be as shiny as a cnc machined mold, but every bit as good a lure.