Well, I'm not MUCH of a hardware guy, except in the summer, and I can tell you one thing. Based on my, and others, experience, Siwash hooks snag a LOT less, you get more snagged lures back, and the fish tend to stay on the hook longer, as a steelhead especially, will use the treble hook to it's advantage, and will roll it in it's mouth, working the hook out. Now as Bob claims, the siwash hooks do more damage to a fish that is going to be C&R, because you have a single hook ripping trough it's mouth, tearing tissue that would not be torn with a solid two or three hook set. Trebles are nice, but if you want to save money, go with Siwash. Unless you are fishing for nates, or have a GOOD possibility of hooking them.

Just my .02

Tom