03/15/2009 ….. Today I completed step 4 on page 20-2 that describes installing the Pitot and AOA lines to the Dynon heated pitot tube. The directions only describe how to install the pitot airspeed line but I decided to drill another 3/8 inch hole install a snap in bushing and run 93 inches of aluminum ATO-032X1/4 inch tubing. To the end of each of the lines I attached 1 AN818-4D bushing, AN819-4D collar and an AN832-4D bulk-head feed through fitting. Time about 2 hours.