wing tip lights & pitot tube run

[Paul McAllister <pma@obtero.net>]

Could a few of you fellow "Europans"share your thoughts with me 
on the best approach on how to handle the wires and plastic pitot 
tube inside the XS wings.

I intend to put wing tip nav & strobe lights on my XS and it occured 
to me that I probably should run a tube through the ribs to take 
both the wires and plastic tubes.  

What have some of you folk been doing with this ?  What type and 
diameter tube, has been tried, and how was it physically been 
located ?