Got a set of the new Profile Fixed hubs with the True 3/8" axles today. Holy crap these things are nice. I've never had even the slightest problem with any of my original Profile Fixed hubs, but I'm pretty sure you could run these on a Boeing 747 and they would work just fine. In other words, these will be the last hubs you'll ever need. And if you think indestructible hubs aren't worth the extra cost, you're wrong. Trust me, I know.
They also come with knurled hardened steel washers that will bite into your frame to prevent slippage, which is a nice touch.
These bad boys are going straight on the red Bruiser...
Huge thanks to Christian @ Profile for the assist, as always!