Todd wrote:

But, back to my original question: how do you simulate
the air trapped along the side of the bugs body? From
Ozzie's photos, the silverly/shiny effect is a beckon
that attracts anything hungry in the area. Any idea how
to duplicate this? Above water I may not be able to see this,
but under water, the bugs might as well have a flashing
strobe lights on it!

Rub some Frog's Fanny (or hydrophobic Cab-o-sil) into the dubbing of
your spinner or soft hackle or whatever fly you're using. I think it's
best to do this before tying in the dubbing, but it probably works OK
with already-tied flies. Since this fine powder is hydrophobic
(repelling water) it promotes the formation of bubbles.

However, this will make an unweighted fly float like a cork, so you may
have to weight the fly to get it under the surface film.

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