Pay question. Moving right to left on maddog (may God have mercy on my soul), 44x last week, converting 2 May. When do I start getting paid 88A?

I assumed (mistake) that 28 April check, being an advance, would be at 88A rates. Sadly, it was still 88B. Mid month May will be for latter half of April, so I'd expect that to be 88B as well.

So, uh, mid June?

Any help managing my expectations would be appreciated.