Are the NBC's on AMC 1-Ku impossible to get in on a 90cm using a Spitfire Elite? I'm -26 off on the skew and can get the north and south pier solid, but can't lock on the NBC's. I get them on my 10 foot dish with the skew set at zero, so I thought I would get them on a 90cm with the skew set properly. Any suggestion, or is the dish too small? Location is Wisconsin. Thanks.