Clint the LMDB version seems to take more time to synchronize with the old version. My took about two days and got stuck in the middle.
What version of Boolberry are you running?
Did you try using --db-sync-mode command-line option to speed-up synchronization as I
suggested above?
You guys should download the bootstrap and you would only have a few blocks to sync, its available on the boolberry github. Thats what ive did and it took my minutes to sync...