[yummyfajitas]

Yes, most of this data is short term because it's for the construction industry which works on projects. Depending on how long the recovery period is, it could easily be the case that the long term maxima is achieved by long hours + short recovery periods. (I.e., 7 65 hour weeks + 1 30 hour week.)

And again, basically all the research either you or I have found is in construction. Construction != Programming.