Just a heads up, if you've used the "Copy To Account (BETA) function, just watch out when copying across fields.
Yesterday I copied over a customitem_ field and although it was present in the destination account it was corrupt.
By this I mean:
a) field has a default of "100" - default was never showing on the item via the UI or loading the record.
b) A search that included that field as a column that worked fine in the source account failed miserably in the destination complaining that the syntax was invalid for the column
To resolve this I eventually deleted the field and recreated it manually via the UI.