Ruling just posted.

Arbitrator rejects every aspect of the ALPA argument regarding the B717 sub-lease to Delta.

My personal favorite is from page 46:
Nonetheless, all that evidence shows is that ALPA gambled wrong in the first SLI Agreement when it rejected the terms of the Agreement in the hope of extracting more favorable terms from the Company. When Southwest responded with what ALPA considered a draconian “take it or leave it” offer, ALPA wound up with little leverage to negotiate terms in the second SLI Agreement.