Thanks Laura. Suppose I then want to subtract the two routed streams from each other (e.g. part of a filter algorithm, Z-(LpfZ), is that possible?
(I'd like to maximise local processing on MetaMotionC if possible, - sample-by-sample subtraction, …

... and while running at 3 samples-per-second, I was able to get two simultaneous Routes going from the accelerometer, ... comparing the Z-axis and Z-axis low-pass filtered:
await acc.Acceleration.AddRouteAsync(source => source.Split().Ind…

Thanks, actually I found ODR is kinda 'rounded' conveniently to the Bosch rates, - hope that's ok!
0.0 0.8 samples-per-second 0.1 0.8 samples-per-second …

Thanks Eric. So with 'overwrite=1', does the firmware "log" routine take care of sector-erase and other housekeeping? (My API will need to "look back" at previous few hours readings as part of algorithm, to change filter coefficients etc).