It's probably time to look at inflation overall, now.
HBD inflation is not counted in the 'advertised' inflation rate.
This is what I propose to fix that:
Newb attraction pool: 50%
Staking hbd/hive rewards 3day withdraw: 12%
Staking rewards 10 week withdraw: 20%
Witnesses: 15%
DAO: 3%
The newb pool is, of course, the reward pool.
Staking hive/hbd in the savings account would get 12% of the overall inflation rather than the little bit it gets now.
I'd drop the unlock on hp to 10 weeks and up its interest to 20%
I'd up witness pay by 50% and witnesses in consensus to 29+2.
50% for the folks sustaining and 50% for attracting new users seems about right, to me.