I use flies like a jig sometimes too. Mostly because I don't trust the jig heads that I've seen in the stores. Either they are designed for walleye and the hook is so flimsy that I'm afraid it'll straighten out, or the hook is stout but is so short that the eyelet blocks off a lot of the hook gap. Now I'm looking for big bead heads to put behind the eye of fly hooks so it will in effect be a jig with a forward facing eye. Haven't found any 1/8 - 1/4 oz beads yet that will work.