One specialist clears your duplicates start to finish — never a rotating pool — and every corrected month is re-reconciled to the statement, so you can prove the register matches the bank rather than just trusting that it does.
We also refuse the shortcut. The tempting move with a duplicated account is to delete everything and re-import a clean feed, and it almost always makes things worse — lost reconciliations, re-downloaded overlaps, a fresh set of duplicates. We correct transaction by transaction, fix the behavior that caused the duplication, and leave the account genuinely clean instead of superficially reset.