RIO's Hogan FA Caddis Pack Size:12 Pack Whether you are using this 6 F34881 Whether you are using this as a caddis or stonefly dry you can dead drift it over a feeding lie but it also serves as an attractive trigger for the fish In Northern California we are blessed with a spring steelhead run and some tailwaters with large rainbow trout… match this with some of the biggest caddis hatches of the year in the spring and early summer and you have a great situation that shakes out to swing flies on trout spey and light switch rods While most “Trout” Caddis patterns out there work just fine for this type of fishing they are not ideal for swinging and holding on to bigger trout and steelhead