I originally put in aluminum tubing too, left two extra feet, then when it came time to mount the wing and realizing how hard it would be to make and maintain that connection with the tight space between the fuse and wing, I ripped it out and used plastic tubing instead (except for the last two feet from the heated pitot of course). Much easier to work with and you will be using the plastic to connect all the instruments anyways. Troubleshooting a leak in these lines should be considered with any decision you make.
James Jula - CFI/II/MEI - N713JL RV-7A First Flight 10/12/15 - "What is chiefly needed is skill rather than machinery." Wilbur Wright, 1902
Last edited by jmjula : 05-03-2016 at 10:57 AM.