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Walter,
Absolutely!! Its much stronger than that. I would extend your restatement to say that with any level of torque the rod tip will move backward. If we were in a common space with a blackboard I could explain the structural effect to you. In the world of structural dynamics this is a manifestation of "quasistatic response" -- the deflected response (bent backwards) to this "body force loading" occurs almost instantaneously and before the accelerations from rest at the rod butt can bring the tip forward. The best thing for you to do is to experiment with it in your home. Start with your rod tip a foot or two below a white ceiling and snap forward. After you get a feel for the effect then snap harder - I don't want you hitting the tip hard against the ceiling.
Well, I wasn't sure how familiar most would be with the effect but I have never heard anyone else talk about it (but Gordy's remarks led me to believe he was addressing the same thing maybe without understanding exactly how it comes about). Its gratifying that it isn't that well know and learning about it will advance the sate of the art for many casters trying to advance their skills. I feel right now it is the #1 fault for experienced casters.
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