Early on, set an intermediate goal of getting to every green in almost regulation (within 20 yards or so). Can do that now. Along the way, bonus of getting OK with lobs and pitches and starting to figure out the sand stuff, while chipping still needs lots of work. Putting still sucks.
Looking at the data, getting off the tee in playable shape sets up the rest of the hole, including mental state. Without that reliability, spraying the ball off the tee, or not being long enough (or too long) turns every hole into an exercise in salvage from the get go. That wears me out. And it's no fun.
Therefore, decided to focus on driver and 3 wood for the half-slap drills.
Somewhere along the way, also realized that par 3s are supposed to be long, and if short, hard to hit without disaster. So, rather than whining about 220 yard par 3s, long irons and hybrids also get plenty of time in the drill.