I have a 3-axis machine, but often want to make cylindrical objects. So, I cut half of it, then flip it and cut the other half. Using the planar finishing toolpath I get rough spots at the lower edges. Using Z Level Finish I get roughness at the top of the object. Here I am making a tool handle. I chose to do a planar finish first, then a Z Level Finish for the bottom few mm. It was easy to select a height range for the Z Level Finish, but when I tried to reduce the depth of the Planar toolpath things went awry. So, I just let it cut to the full depth. I also wonder why I have a lot of unnecessary paths in the planar run, which I don't usually encounter. A lot of cutting in air, but it works. This is v27. Maybe some of this is no longer a problem in newer versions?