Originally Posted by
Grumpyaviator
If everyone flies fast, you get less than scheduled block, regardless of how slow you fly. Everyone has to fly slow to increase the historical average in order to get better than scheduled block.
At xjt if you fly fast you still get scheduled block. If you fly slow you get paid YOUR actual block, independent of what everyone else flies. That's "true block or better" vs "SGU block or better".
I think it's more of making their schedules more efficient than it otherwise would be with non-historical credit. Seems like historical block is almost always lower than scheduled block time and therefore they can cram more into a day, trip, line, month, year. It's a way of forcing them into productivity without having to always compensate them for those minutes they would otherwise get with scheduled block times.