Do you use the same blade? Or is there a different type blade that you need to use? I am pretty sure the blades do not need sharpening. I have only done one goat since I had them sharpened. Now, poor "SHEEP" is dying of heat stroke, and I really need to shear him! But, the clippers wont go anywhere. They get jammed up and wont move. Any hints? Or tips? Or bright ideas? "Sheep" will love you if you can help me here. Thanks!