Any ABS caps will get shiny with use, and there's not a lot you can do to stop it. Those a stock Filco caps feel terrible, though, so you might as well replace them. My double shot ABS caps from SP on my Rosewill daily driver at work are super shiny, but it doesn't bother me one bit. Learn to embrace the shiny.
If you can do that, thick ABS from GMK are about the best you will find, IMO. But they do shine up with use.