I have made a couple batches of deer sticks and some potato sausage. When feeding the meat into the throat of the grinder I find myself really having to push hard with the pusher to get the meat to come out of the tube. A friend was telling me that his grinder all you have to do is drop the ground meat in and it comes out, no effort at all. If I dont keep pushing on mine the meat wont come out. When it comes to actually grinding whole muscle meat it cranks it right out with no problem. Ground meat though is a different story. Any suggestions?