Bob,
I've had some luck with similar flies, especially Comets, but most of the shad fishing I do is on the Potomac in deep water/strong current and I usually have to use something heavier, even with a Teeny T250 line. My go-to "flies" have been 1/16 oz crappie jigs with Mr. Twister tails, a real joy to cast, especially when the wind is up.
Regards,
Scott