Do variable gullets exist? What about dirt like seaweed etc? Wouldnt it be more logical to "connect" the gullets directly to the waterjet? I might imagine that when the bow ries with speed, the waterjet has to be trimmed accordingly since otherwise it would be pointing down instead of at the back. Also, in forementioned situation, the gullet in the hull might rise so much with the hull that waterintake might be at risk. When connected to the waterjet the latter problem wouldnt occur?