Yes, that does seem to be true Kevin.
Also, the fact that even when you can extend the track by leaving it at the 0 point, the track is still limited to the original length of the comp is weak. However, it seems if you reset the lenght after TRemapping, the track is extended to the new length.
All this MAY have been fixed in AE CS3, I don’t know.
Good catch, and thanks for the help.