Roof rails - OEM vs aftermarket fit of crossbars?

I've got a 2020 Sig, and am looking at getting roof rails. Does anyone know if the Ebay ones actually fit the crossbars well?
 
I think these two threads would be a great read:


Your question is not directly answered, but I think a person could infer the aftermarket roof rails are on par quality wise as OEM, thus accessories that attach to them would work correctly.
 
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