Hi Jim
There is no "BALY" spec code. If you mean "BAL", then "BAL" and "Y" are the same for income and expense accounts, but for balance sheet accounts "BAL" returns the current balance, and "Y" returns the net activity for the year.
If you mean "BAL_Y", they are completely different.
In Financial Reporter, click on View | Account Data. You will see a list of all spec codes. The ones under "Account Balance As Of" should be used with balance sheet accounts; the ones under "Cur. Yr. Net Change in Balance" should be used with income and expense accounts.
Steve