The coffee method sounds promising. Would it work as well with decaffeinated?
Thgis is a bit like a system I meant to follow up several years ago but Sportsman and the Wizard couldn't supply the hard data required to research it comprehensively.
I revolved around backing the horses of certain strappers when they (the strappers) were first up from a spell (i.e. returning from their annual leave). Nowadays this could probably be refined and one could concentrate only on those strappers resuming from stress leave on heavy tracks.