Speedy
I think you should read the LOA and the LH certified agreement again.
Part 6 of the LH award refers to "Hours of work, scheduling and related matters". Included in this is allocation in accordance with "bid line preferences in order of seniority".
Definitions in the LOA refer to "scheduling and hours of work provisions contained in Part 6..."
The LH award includes the definition of seniority.
The LOA states that when the change over takes place, the LH award in its entirety applies.
That is what is written. It satisfys the integration agreement, but it appears that some have trouble remembering what they agreed to now the consequences are revealed.