Right, this is my third attempt, and I still don't think it's quite right. It is however, glued on good and solid, so it's here to stay. I've overlayed the aero template using seifrob's online tool, and my kamm back does seem to go down at a little too steep an angle. What do you think?
I put the template that far back on the roof because it's pretty much flat all along it. I haven't had the chance to test it properly on a known route, but it 'feels' -ahem- better. Will it give any benefits at all being this far below the template line?
Also didn't get round to removing the mud flaps.