It's interesting to look at effort-levels lower than max, though:

* xhigh: 62 score at $14.83 per task for Fable 5.2, vs 50 score at $10.85 per task for 5.1

* high: 62 score at $9.08 per task for 5.2 vs 47 at $7.54 per task for 5.1

* medium: 56 at $3.80 per task for 5.2 vs 43 for $5.56 for 5.1

* low: 54 at $3.10 per task for 5.2 vs 39 at $4.37 per task for 5.1

At medium and low the scores are much higher for Fable 5.2, while actually costing less per task than 5.1