I wouldn't worry about the splinters in the splinter camo. At that scale they would be so small you would never see them. I think what's more important for the Fallschirmjager camo is the hard edges and sharp, straight lines, as opposed to the rounded edges and "blobs" of color on regular Late War Normandy camo.
The splinters are just way too small to paint. I've never seen it successfully done, but then again I haven't seen a lot of examples, either.