Depending on the steps of the stepper motor or whether it's geared and its gear ratio, the feed rate of the Z axis screw, etc. this could prove problematic for people. For instance, it's always been my custom to use as my layer height some integer multiple of native base layer height that depends on the Z-axis screw turn rate and the number of steps of the stepper motor that turns it. It used to be .04mm before I modified my Z-axis setup. This means I set all my layer heights to multiples of .04mm, so .12mm, .16mm, .20mm, .28mm, etc. Any layer height in between these would work less well because at some point the controller either changes from rounding down to the next step of the stepper motor to rounding up, or vice versa, and then you get a layer that's different than the ones that preceded it. This could leave visual artifacts such as repeated patterns of individual layers that look different than the other ones (sticks out more, or sticks out less).