BW
Just spoke to BZN to see if they could shed some light. Without specifics the guy couldnt say why. He did reiterate that LARS is a lower priority over BZN working their own ac on other freqs. At weekends the manning is such that LARS capacity is not always as they would ideally like and as a priority it comes after their own ac, the zone task and then the LARS task. He didnt know what the guy meant by "as published".
In the RAF ATC manning is not 100% and units are stretched are to fulfil all that they are tasked with.
DD