Ever have one of those days where you just can't see the forest for the trees?
Had 3 issues with this build:
1. R26 wrong value
2. C39 in backwards
3. I overthought everything, built the circuit too fast, and lost my ability to think through the problems. After a long nap I realized I was calibrating the clock backwards lol.
So everything's good I've got up to 560ms of beautiful clean analog delay.