FYI
They way the Delta "me-too" works is a bit convoluted. But, basically we get an across the board raise to match your raise % by the end of our contract in Jan 2019. (i.e. Your 31% - our 24% = 7%). I don't believe we get an actual raise Jan 2019, we have to negotiate that as our next contract.
As far as the 767-400 and 787 rates being the same as 747/777 rates, that was due to an ultimatum by the CAL MEC during joint negotiations that they would walk away if that was not implemented.