If you are able, can you post a picture of the Tyndall effect with a laser pointer, and what ppm the silver is?
Also, do you see any specs reflecting beyond the normal Tyndall effect that's created?
I've noticed with my SG6, the further apart the silver bars are spaced, the more pronounced the Tyndall effect is along with more specs being reflected on by the laser. Closer the bars are, the Tyndall effect becomes much more smoother.