clogan - Because you included these in your bk, you legally no longer owe the debts and can walk away without owing the lender anything further.
If you decide to walk away and stop making payments, the day you decide this you need to dispute both loans with all 3 CRA's. Dispute them as "included in BK". By law, they cannot report anything negative AFTER the month you filed BK. Since you were current on your payments at the time of your BK, they would simply have to report "Included in BK" and "Never Late".
Regardless of whether the lender will do a short sale or DIL, none of that can be reported on your credit report - only the "IIB" notation and NO late payments.