How accurate is the curvature display?

I'm working on a case for a medical device and noticing that when I knit surfaces together the curvature changes.  This makes me question the accuracy of the curvature display.  When I do a deviation analysis on the edge it comes back with 0deg so the edge is tangent.  I created intersection curves for each surface and then dispayed the curvature of the resulting splines.  There is a little jump at the edge.  Is this anything to worry about?

SolidworksSurfacing