When using FMW I find it annoying that it requires at least one of these two options (slew or center here) be checked. I prefer to create targets with neither option so that I can manually acquire the target and then get guiding set up.
I also find it annoying to manually acquire the target and then have SGP give me a warning about these options not being set before starting the target. SGP has the information that I manually did a slew and center here so the error is not required.
Both minor issues to be sure but annoying nevertheless.