there are several factors you are dealing with that will throw off your numbers. Most importantly is the facet size and distribution. That is what the analysis is done on. Small rounds and fillets may just look like a chamfer. Default analysis settings won't do these areas justice.
As for the cosmetic rounds pointed out in the image, they mean very little to the overall analysis. I may even remove them for a simpler analysis.
So you know, I am not an analysis guy, but in almost every instance where I've reviewed or provided input for analysis, the model was always simplified geared to the study being performed.