I attempted my first try at making breakfast sausage links. I soaked the casings in warm water for 30 minutes and flushed them out. What us the trick to getting the casings open at the end to put sausage tube? It took forever to get the end of the casing onto the stuffer tube. It seemed like i could never get the end opened. The casing alson stuck on the filler tube causing the casing to break. All the trouble took the enjoyment out of making the sausage links. Any help or suggestions would be greatly appreciated.