i have been making my own carnks and jerkbaits for the past 14 years . have in the past tried making sillicon mold for crankbaits. i know how to do that!! the plastic to fill my mold is my problem. i have been using a 2 component plastic with some filler material. the result was a solid sinking plastic crank with poor preformence. what im lookig for is a plastic that gives me a solid floating plastic body. that i can weight with led. does any body have any tips on material,web pages with info about molding ????