I did fairings on the Jury Struts and the Elevator Struts. The ratio I used was 1:3.5 which is very close to the ratio on the extruded lift strut fairings. I prepared an album series of pictures with the technique I followed. As a side note, during the Lancair build there was talk of the drag created when a right angle is produced by large surfaces. Specifically the horizontal wing butting against the vertical fuselage. On high performance airplanes, these are always faired. I would suspect that the junction between the doors and lower wing surface on our design is extremely draggy. Fix that, and I suspect performance would improve about as much as adding the lift strut fairings. To see the way I did my strut fairings, go to my Albums "Techniques Page" http://www.teamkitfox.com/Forums/album.php?albumid=474