robalo01,
I use resin for my molds and also use wax as my masters. I tried the clay but it left a little to be desired IMO. I like the wax for many reasons, but the main reason is that when I get it carved to what I want, It is easy to glue down and when the resin cures, it melts the wax. That leaves a glass smooth finish in the mold. All I do is reheat some used plastic and pour one batch through to remove any of the left over wax. I like the resin for the mods because I can pour a mold and 2 hrs later be pouring baits in it.
Zbass