One suggestion I can make that will improve things immensely is to have a BAC only staking pool that also mines BAS, it's similar to the DAO in ESD. The reason is that the capital efficiency of BAC improves immensely without having to have 1 for 1 DAI.
One of the problems of BAC is that it has to be paired with DAI to be useful, which is very wasteful and slows down expansion.