Hive account@tombstone and 
Hive account@therealwolf both offered valid suggestions but you rejected all of them in favor of rushing a 4 week Powerdown in this hardfork.
If the issue is with SMTs, why not ask 
Hive account@steemit Inc. to add in a 4 week Power Down option for SMT's?
That might be better.
RE: HF Proposal: Vote to Reduce Power Down Period to 4 Weeks