ive looked everywhere and cant seem to find the type of worms bill murphy says to use in his book. i know lunker city makes muscle worms but there is no medium size worm. the six inch is small and the nine inch is huge. ive searched countless sites that make soft plastics and they all either have the right colors and no size selection or right sizes and not enough colors. does anybody know where to find the plastic worms that work well with the techniques described in the book?