I am not a fan of treble hooks for any trout , steelhead or salmon. Treble hooks on flies are the anthithesis of catch and release. Here in OK some (read not me) use treble hooks for catfish because the trebles hold the stink bait on better. If we need meat dynamite would be more effective.
I am not a purist by any means. I occationally eat a trout when I am camping.


Just my opinion