@k chalk me up as another "looked at GAS, went 'that's all this gets me for that much work?', laughed, and wrote my own".
The studio scale you seemingly need for GAS to make any sense is, I don't know, I've never worked at one. But it sure as hell doesn't save me time at my scale. It's assuming I've got all these other absurd requirements of an ability system, and that's the value it theoretically brings, and I just never cared about any of that.