There are various methods of winging a wet fly, usually the method varies with the material. Two of the most common wings are the matched slips, and the rolled or folded wings.
Flies that require a wing of duck flank feathers, teal, bronze mallard etc. usually have a rolled or folded wing. These would include Teal Blue and Silver, Mallard and Claret Dunkeld etc. (Some people tie these with paired slips but the wings tied like that are not substantial enough, well not enough for my liking). Paired slips are made from more substantial feathers, usually primary flight feathers. A matched pair of feathers, the same one from each wing from the wings of one bird. (Not all suppliers supply matched pairs of wings, Veniards are particularly guilty of this). The slips are taken from the same place on both feathers. These include flies like Greenwell's Gory, Cinnamon and Gold etc.
There are a third class of winged wet that has a folded wing from a secondary flight feather. For a start possibly the best, most readily available, feather for this is the hen pheasant. A large slip, 3 1/2 times the width of the desired wing is ideal. Now with the slip on the table in front of you turn in the left edge until it almost reaches the centre of the strip. Then fold in the right edge. It is important that both edges neither meet or cross in the middle. Then fold the entire strip in half. The gap you left in the middle helps to keep the slip together. If they are too long the slip will split. This folded wing is mounted with the open edge downward. This method is most commonly used on the Invicta wet fly family. That would be where I suggest you start. Have a go and let us know how you get on.
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