That's a nice starting APR for pools I'd say, I think holozing had it quite high but we adjusted it downward over time and it's still quite high in terms of the other rewards but as you said it can change whenever more or less people pool.

Haven't been able to follow this project much unfortunately and wasn't able to delegate HP as I'm tunnelvisioning into my baby @holozing as you know, but wishing you the best of luck with it and everyone involved!