Thanks for pointing out that I had the wrong support arms. Yeah, you're right. With the shorter arms the LNB looked like it was crowding the dish. Now it looks like it's in the right spot.
I don't think it was a file size issue. I tried to upload these same exact three pix this morning with no luck - kept bombing out. Anyway here are pix of 3ABN dish assembled using the correct side support arms for the LNB.