The Hackled March Brown is one of my favorite big fish wet flies. Long time readers may recall the first time I wrote about it — you can read that piece here. I don’t have much to add, other than this has become a supremely reliable pattern for me when the Isonychia are flying. (Next time you’re fishing sulphurs, and you hear a rise that sounds like someone threw a bowling ball into the river, betcha your lunch money it was a trout eating an Iso.) The Hackled March Brown is almost always my point fly on a three fly team. Fish it this summer and you’ll see why I recommend you tie it on a 2x strong hook.