There was an article in one of the major fly fishing mags (I can't recall which one) recently that touched on this one. They suggested laying a strip of lead on the underside of the hook so that it would help keep the fly on an even keel. I haven't gone as far as testing my flies in the bathtub, but would be interested in the results. That being said, if you look at the majority of fly tying tutorials out there, I've never seen anyone take measures to prevent the fly from turning. I've watched almost all of Aaron's, and he doesn't do anything to affect the fly, and they seem to work just fine for him![]()