A friend and I were discussing poppers made using these cutting dies (http://www.jvlnet.com/~swinters/ ) while fishing yesterday and an issue came up in the conversation that I am hopping that you can help resolve. While making poppers like the enclosed photo, some of them track in the water very well, like a crank bait, and others ride to the side. The center hole in the fly where the hook goes through is a constant since the die cuts this hole while cutting the plug so we don't think it is the center hole. Perhaps how the lip is cut could be a source of the problem.
I was wondering if any of you ran across this same issue with this type of fly and what you might recommend as a way to make them more consistently so they track better while fishing. Thanks for any input.