Hawg Assassin

I bought an aluminum senko mold from Delmart. I melt the plastic as instructed by the directions and pour into the mold. I use a metal spoon to stir the plastic with. All of my senkos are coming out of the mold with hollow bodies. Some are only hollow in sections and some are hollow all of the way through. Any suggestions?

I have a Tracker Pro Team 170 with a 50 hp Mercury. Bass Pro Shops and Tracker Boats both say 50 hp is the largest recommended size outboard for this boat. Can anyone explain why 50hp is the limit. Why not 75 or 90 hp. It seems to me, the boat would do just fine with the bigger motor.

I am also from So. IL. Where in the world is Richview. I am from Herrin.