Is it any different in topographic changing if I used different registration and different distances in tools?

[Helmi]

Is it any different in topographic changing if I used different registration and different distances in tools?

[daniel]

Yes. The registration tools won't give you the exact same position, and the distance computation tools don't estimate the distances in the same way (they don't make the same asumptions, etc.). Statistically (globally) they should give the same results however.