Just to set the record straight, the strut in my previous post is not mine. It is a photo of a Kitfox SLSA parked in their booth at Airventure.
Below is a top and bottom view of my struts.
This is from the top:
Mangy Strut.jpg
This is from below. (Please ignore the mud...)
Mangy Strut 2.jpg
I filled in the trailing edge gap again with a fitted piece of wood, hysol'ed into place then covered the whole thing with fabric. I went with the fabric because I have never had any luck getting paint to stick to plastic like this. So now they are fabric covered and match the rest of the plane.