Hi Jim,

When doing a time shift, all slices are shifted as if they occurred at
the same point in time. Collecting the slices sequentially will not
have an effect on this. If some slices was collected 1.9 seconds after
the time that you are interpolating to, that is how far it will have to be
interpolated.

Let me assume that you have 7 slices, and you want to interpolate
to the time of slice #0.

If your timings are (0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5), then slice 6 will
be interpolated by 1.5 seconds. It does not matter that the slices
are sequential.

Note that the default action is to align the times to the average offset
(5.25/7, or 0.75, in this case). To align with slice 0, use either '-slice 0'
or '-tzero 0'.

- rick