Funky continuous shifter housing

Edit: I already went back to the "regular" method, as I was worried it'd fall apart in a race...but you can read anyway:

By current 'cross bike has down tube cable routing, which I really don't like.  I decided to try putting one long piece of housing on instead to keep the dirt out.  The rear seat stays are carbon with a cool shape that didn't work well with zip ties, so I went another route.

I'll probably change my mind tomorrow but here it is:

 
What?  Hey, it works pretty good.

zip tied under the down tube

under the down tube.  I should snug that up to the frame.

 
And across the chainstay.