Difference in slew report between Station Base Report (xml) and Vertical Profile

Hi,

Why am I getting a difference when reporting slues using xml reports, and when displaying slues on my vertical profile (for the same alignment at the same chainage).

The vertical profile seems to be correct, and the station base report generally close but sometimes quite off.

What I am assuming is that the xml report method interpolates between the regression points while the vertical profile smoothes through them.

There is an option for 'smoothing' when doing the station base report, but this doesn't make a difference to the output.

Ex. At regression point no.10 there is 110mm slue and at regression point no.11 there is 120mm slue (measured from CAD).

At a chainage between these regression points, XML report gives a slue of 97mm and the vertical profile will show a slue of 117mm.

Can anybody help with this/had this problem?

As it's an issue when trying to get accurate sixfoots as-well

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