If you ' ve been watching the NFL for 9 years and you can ' t even make that choice for yourself , nobody here can help you . <| sep |> And before anybody says this is wrong , you need a level 3 Ball Shop and your plaza at level 30 <| sep |> I suspect from reading about their setup is they have some sort of instability in the PLL which made locking on the resonance difficult and time consuming . They mention they have to kick start it in the right spot , which is a good clue that their bandwidth is probably too high for the PLL control loop . I have a feeling there were many setup issues going on that prevented them from getting repeatable results . If you just look at the few data points they provided , they contain very large deviations too . Edit They may also be suffering from a dynamic range problem with the phase detector in the PLL , but there ' s not nearly enough data or characterizations given to know .