The famous leech pattern, the Simi Seal Leech, is a proven winner on trout lakes when fished with a full-sinking line. Get the fly down close to the bottom and fish it with short strips. The bead head and flowing Arizona Simi Seal materials give the Simi Seal Leech an undulating motion like a leech cruising along and an easy meal to trout. Fish this Peacock color version especially on lakes with lots of weeds.