Right. C only with that mesh. Solid. Mount looks good and strong.
But you know, I have often wondered what would happen if you got some aluminum or steel sheet metal and alternated the triangular dish sections, solid and mesh. I don't think it would hurt the C reception. With the mesh still there on half, the wind stability would pretty much be there. Maybe the half of the dish that had the solid panels could bring in the Ku stuff.
Just thinking out loud.
As far as the instability of the buttonhook is concerned, three equal length guy wires stretched from the lnb to the edge of the dish would stabilize it. All you would have to do is figure out a way to adjust them for length - maybe using a long 3/16 threaded screw on each guy wire