I like doing boxes like this:
Getting ready to do a few of these so I created a definition to assist with creating the wave top.
There are all sorts of controls, but no safety nets. One very useful thing I added was creating tool path lines that are the same contour as the waves. I use a Vectric product to project the cut lines onto the surface which results in a really nice surface. Yes, I know lines can be projected here too, but that would not work as well as just clicking the check box in Aspire.
As always, I am sure i did not always use the absolute best practice, so my feelings will not get all hurt if folks modify this definition.
A screen shot from Aspire:
Wavey Top II.gh (62.6 KB)