Wait until you try for Ku on the Big Dish.
What Sat did you get?
Measure from the Rim of the Dish to the Scalar Ring, in 3 palces, like 12, 4, 8 o'clock.
The 3 measurements must be exact.
Make sure to Skew the LNB properly for the Sat you are aiming for. Every time you move the dish to a different Sat, you will need to re-adjust the Skew.