The flexible line is run on top of the inside edge of the bulkhead. I drilled holes along the way and used cable ties to secure the line loosely so as not to pinch it off.

I used a 7/16" Unibit to drill a hole approximately level with the bottom edge of the longeron. Insert bushings and run the line through.

On the bulkhead under the seat back adjustments, drill the hole between the rivets so that it exits inside the canopy deck on the other side. This allows the pitot static line to run hidden under the deck plate.

The line stays under the deck plate until it passes through the panel as shown and is now behind the instrument panel.

Getting through the bulkhead shown on the left required a 7/16" bit because the hole must pass through both sides of the U-channel.