I am testing it on my beta server. Running into one issue though, waiting for @arn to get back to me.
I am currently running a custom Pixelexit theme with some add-on that use custom icons so I need to export a list with all icons used and the command that does that gives me errors.
To be continued...
In the WebFonts WG, we're investigating technologies for incremental font loading, so that the browser doesn't need to download every last byte of a font before it can start using it. Our initial technical findings are promising.
We're specifying an approach where the browser downloads only the parts of the font it actually needs to render the current page (plus some extra for speculative data it might need in the future, plus some more extra for noise so the server doesn't know exactly the contents of the page you're on).