Just thought I'd add my 2 cents worth . Bubble gum pink coloured worms can be long or your traditional type mister twister style grubs .
I've hit Steelhead on them any where from a 1 " twister to a 6 " worm , the twisters are hooked through the end to the middle of the body , the worms hooked some where around centre , you want to give it action in the current . Check out photo , I've placed hooks in some to show where I set them up .
Bass Pro shop and Canadian Tire stores are my main source , but I've also found some good baits on - line .
Hope this helps in some way . I've fished Steelhead and Salmon for about 30 years now and one thing I know works absolute wonders for both in a deep pool on a river is ... live Dew Worms .! Salmon hit them hard , we've hit many salmon ( Chinooks ) while fishing for Steelies with worms . I just picked 4 dozen worms in my back yard last night gearing up for the weekend .