I would say they can crossover. My favorite large streamer is a variation of Bob Popovics "Semper Fleye". It was designed for salt water but I use it in fresh water for pike and bass. Haven't done much muskie fishing with a fly rod. The one in the picture is about 7 inches long. I can cast it with my 6 wgt or 8 wgt.


The original Semper Fleye would be a good beginner's pattern to start with. Here's a link to a video of Popovics tying one. It does push water and has a lot of movement.