Anyone ever played Knucklehead Guitar/Bass Strings?

I'm actually endorsed by them. But unfortunately they don't offer the string guages that I like. As for quality, they sound very good, but for as much wear/sweat that I put on them they don't last as long as say, Ernie's or D'Adarrios.

Their Short Bus set of strings would be perfect for Baritone guitars since the low E is a .58.

Couldn't hurt to get endorsed by them. Always helps the resume.