Well guys, I figured out that the part leading up to the tail was way to thick, which hindered the swimming action... I tried plastisol with softener, but it just wouldn't swim. After I chopped some plastic away from that section, it swam pretty well. I guess i'll have to make a new mold with a skinnier tail.
While I'm working on that, can anyone tell me why there were huge indentations in my swimbait? It seemed like the plastisol pulled in on itself...