On the LR3 John used the little tool in the first pic to create the indentation, the final attach looked like what you see in the 2nd pic.

Whether the hull is in flat water or in waves, shapes are driven by drag. Software that can handle waves like Fine Marine / Numeca is hugely expensive and requires an expensive computer to run it also, so we had to come up with another solution. The previous pic's can be generated on a case by case basis in about 10-15 minutes on a laptop, and enough data points for a VPP can be generated overnight, so this capability allows you to look at a lot hull shape variations very quickly which ultimately means you spend 3-5 times the amount of time designing a shape because you can play with so many variables and have an idea of what the consequences of any particular change is. This software is not available commercially at this time, but maybe in the future.