Brass,

There is a pretty good chance of catching a king on a slow trolled cut plug at PD. However, this is more likely to happen before sunrise than after it (or right prior to absolute darkness in the evening). Although many fish migrate in the 40-80 foot range, once sun light hits the water they start dropping deeper.

Nonetheless, it is still worth a shot if you are confident you can fish this deep.

Personally I don't like to waste a lot of time fishing these ranges levels after sunrise and elect to head straight for the bottom in the 110-150 foot range trolling a large spoon or hootchy behing a flasher. An exception to this would be off the mouth of the Pew.

A common mistake many make at PD is trolling close to the shore or the comon Blackmouth water. Although many fish are caught, remember that these Kings are migrating and the majority will be further out than believed.
This is just outside the normal trolling paths of nearly every boat. The opposite holds true the further east you fish.

One area I can suggest to try your method is along the piers off the slag pile. Or possibly the grain elevator toward the Pew when the water is open.