The hose situation  is not uncommon in older vehicles. They can look
good but deterioration inside allows them to collapse such that they
act like a heart valve and fail to release pressure when the pedal is
released. Solution is new hoses.
>
> After giving it more thought ... it's also possible that the rubber
> brake
> lines have deteriorated and are restricting the normal flow of fluid.
>
> Have you felt the wheels after driving to see if one or both are
> running
> hot?
>
> Mike