I have never seen any difference between the values when I logged basic and advanced on different runs, I dont always compare them but so its possible I have missed something. There is a limit to how much data can be recorded at any one time, it may be that if you are logging a lot of values at once then there will be less data per value recorded. Then the graphs will join the dots as such and show minor dfferences as its less accurate.
Setting up a map watch for what you want to log does as good a job imo.