Fyfer, if your LMB are still very abundant, the cursed cormorants may spend their time catching the bass. Trout may be able to outswim the birds, whereas the bass may not be so speedy.
I can't remember if you live where you can observe the pond throughout the day. If it were me, I'd sit watching the cormorants fish and try to determine what they're catching. Perhaps they'd do you a good service if they'd concentrate on those surplus bass.
If you see them catching trout, fix the problem.
