I think its more the "Schock and Awe" antognize technique which will work on the aggressive steelhead. I am working on my new series of marabou Show Girls to shock and awe them.
Put a big wiggling and flashing marabou in front of the aggressive ones and there is a good probability they may go for it.
I am refining this to add to my traditional Naturalilistic techniques,
meaning natural colored nymphs.
I don't see many people using spinners for steelhead in the GLs but I can tell you they are very effective in a skilled fishermans hands. I used them the first two years out here and the steelies hammered them. That was 20 years ago, all fly fishing since.
Good luck in your pursuits of the chrome !