A little more work, but I have found this method more than satisfactory:
We get a small handful of undersized prawns when we're fishing them, just about every lift. These, instead of tossing back, I keep specifically for fishing for steelhead where allowed.
I remove the head, leave the shell and tail intact, and dump procure over them for several hours. Not only brightens them up, but ensures they are quite tough. Eventually packed in coarse salt after draining, they will last indefinately in the freezer. At the river, I thread them onto the leader much as you would a pink worm. A small salmon bead on first, then insert the needle between the swimmerettes on the tail (dead center), through the body and out the head end. These will last dozens upon dozens of casts, often survive contact with the floor or other instream objects, and the steelhead very much seem to like them. I can recall several occasions when we've witnessed steelies streak right across a pool to smack them, and even have had them take on the retrieve.
Like I said, a little more work with the prep, but the endurance it produces is well worth that IMHO.
Tight Lines...
Nog