I would suggest looking at a few of them, take parts that you like from some and disregard others. I have seen some on there that bare no resemblance at all to knitting a net effectively. I have my own way of knitting that suits me, a few others have found it useful too, but some just cannot get to grips with it as it changes everything they were taught, and they have developed a style that suits them.   The principles of knitting a net are the same, it does not matter if you are making a traw