Did a couple of miscellaneous jobs today:

1. Scuffed, cleaned and primed the underside of the top skin, in preparation for painting it next week.
2. Permanently installed the firewall passthroughs for the three GPS/XM antenna coax cables. I used gray, 1000-degree sealant in addition to the stainless steel grommet caps.
3. Measured for, and ordered, a few custom SCEET and CEET ducts for various uses, including the cabin heat and the fresh-air vent. I ordered them with their ends sealed with vulcanized rubber so they will never unravel.