The polar mount skews the dish too doesnt it? Isnt the elevation different for every bird? The dish I got has a frozen polarmount, and if I cant free it up, I will need to fix it. I got it from a house 10 miles east and slightly south of me, so the elevation should be very close if not right on, but to what bird I do not know. It mounts inside a 5' cast iron pipe bolted to a slab. I dont have the base yet, couldnt get the square nuts loose.