IMO in my opinion they look better, anyways heres an example
http://www.deviantart.com/view/19076869
I just found out this today so spare me the critique if you dont like the effect.
1. Duplicate your brush layer.
2. Go to FILTERS>RENDER>FIBERS and enter following settings
1st one: 12
2nd one: 1
3. Click ok
4.Now go to EDIT:FADE FIBERS and choose somewhere between 93-97.
5.Now start deleting little parts, not a lot just a little.
6. Now go to FILTERS>SHARPEN>SHARPEN
7. Combine both layers and if desired to the Sharpen again
8.Now you should have a good mettalic effect , wich adds more texture to the whole brush , but I have figured out it doesnt work too well with all grunge brushes.
9.Enjoy but please dont redistribute![]()
Hope I helped someone . B) B)