There aren't many grounds where you put it so that the home end can't see it though. Personally I'd put it where it is now and in the future if it proves to be a revenue generating success then i'd be looking at putting a second one atop the corner stand.
Only the top corner of the Ponty and a bit of the west upper, not all the home fans can see the current one especially in the west upper. Fixed to the north stand roof could be an option like Prestons.