BY rickbob on the fish's, Got a 1/8" bs and 1/16" rs on my 5.0, love the setup. So locked, absolutely no slop anywhere. Fit like a dream on the new aircraft-grade kingpin I just put on as well.
Of course I was tweaking other things at the same time (bushings, foot stop placement) so I didn't do a 'scientific' before-and-after with just the washer cups, however I would definitely buy them again, they rock! Great product! I honestly don't ride that many miles (yet?) but I got in a couple 3.5 milers so far with these and I know I won't ever take them off. fwiw Mermaid, 5.0, Seismic 130, Atobe purp/pink wheels...
http://www.griffinskateboards.com/washercups.html
