Default Starting Balance on Reconcile Screen
When going in to reconcile you ask for the starting and ending balance. A lot of people (like me) reconcile off of online banking and not off of actual statements. Regardless of how people do their reconciling you should pre-populate the "Starting Balance" field with the last successful reconciliation's "End Balance"... does that make sense?
Whether you reconcile off of monthly statements or off of online banking your starting balance is always the last successful reconciliation's ending balance (or zero if you've never reconciled)