I have done a little experiment.this is what i did .i used 100X to see changes in the edge .used to very nice blades. WAde&butcher meat chopper and Puma gold.
Again this was experience.
I did sharpen both blades their maximum sharpness(i could call almost overhone)

I have 4 different stropes.
i did stropping on each of them and see what happens.
Results were .in the finest edge blade you have to have the best strop to get better result.
my hardest strop almost killed the edge.
My finest strop smoothest the only one didn't damage the edge and edge get more finer.
Conclusion
if you get blade in right sharpens stropping will help the edge(right stropping )not pressure at all on the blade.If your blade has been overhoned then a good strop will improve edge tremonduosly.Bad strop with nicks etc will dull the edge.Edge is very sensitive in this case
I hope i am clear.