The piece i was reading quoted , J C Mottram, Skues (my Idol),Marinaro and la fontaine amongst others.
The thinking seemed to be due to the refraction of light fish can see the tips of the wings, therefore a picky fish will ignore a fly without wings.
Problem is, as Mr Skues well knew ,fish more often take nymphs and emergers or cripples rather than healthy adult duns.So the theory is possibly without point.
The similarity between all the experiments as regards viewing the flies involves a still surface.
So on a still (flat calm) surface the fish can see the wings due to the refraction of light, These conditions do not happen very often on a river especially one like the Don, but some of the glides do have glass like surfaces at times, perhaps then it is time for a fly with wings.
As for the other 182 days of the trout season the surface will be rippled breaking up most of the refracted light so the wings are invisible.
Personally i think wings make a fly look very pretty and can balance a pattern laterally when its on the water, klinkhammers obviously sit pretty anyway, but the wing post is a visual aid, hence pink and orange wings not affecting the fish.
As for my Dries I'm with PD , i'll stick to spinning CDC collars
Legs and crumpled wings are more likely to catch fish on the type of water i prefer.
Although it may be interesting to see if wings make a difference to the usually, very difficult fish that you get rising in a flat calm on a stillwater.
Just a thought
:
Sandy
:
: