More details coming but DVS code has been updated creating a green zone price for DVS. Right now this green zone is 0.5-1 HIVE per DVS. Below 0.5 APR will be below 21%, in that zone APR will be 21%, and above that zone APR will be above 21%. This has been added on top of the average price setup.
There needed to be a better way to control output. This encourages delegators to allow the price to rise instead of them trying to get it down to print themselves more. To print more than 21% they gotta let the price rise.
Over the next couple weeks, I'll be buying up the extras and pushing the price into that green zone, after that the system should regulate itself.