"Acceleration simply means to increase the speed. But the rate of acceleration is of paramount importantance. The rate of change of velocity with respect to time. It must be a gradual increase in speed. All the way through the stroke! I am reluctant to use the phrase "constant acceleration" due to this reference of SUAS. As if the stroke is made at a constant speed until the final few inches before we finally initiate this rapid SUAS. This is, IMHO, misleading. This technique, what I refer to as a delayed application of power, will only work in the context of classic old style casting. (single hand rods) Where you were taught to hold a book between your casting arm and your body. No double hauls. And you are only casting small flies for relatively short distances. When you start trying to throw large flies, weighted flies, and/or going for more distance, you simply cannot get the desired results with that delayed and sudden, application of power. After all, just how much is the human body physically capable of accelerating in, say six inches, of hand/wrist movement?"
The rod/hand stroke is made at an increasing acceleration (not speed) up to the SUAS. The initial acceleration is fairly slow and increasing gradually (the rod is continuously flexing deeper as the hand travels the long straight line path), then the short quick SUAS at the last few inches to complete the cast.
If you believe that one cannot get the desired results with large weighted flies or longer distance,,,,,tell that to the many hundreds of saltwater fly casters who have used this style for about 35-40 years.
The key is not using the hand/wrist movement,,,,,the SUAS loading of the rod is a speed stroke not a power stroke,,,,,we use the arm and shoulder muscles not the weaker wrist to apply the SUAS. If you try to emphasize power,,,,a tailing loop will result when going for distance.
The very short SUAS at the end of a long hand stroke is only one style of casting,,,,it is not correct or incorrect or the best way for distance.
Most tournament casters use a straight overhead stroke and drift on the back cast,,,,if you have a very strong arm/wrist and great timing this is also very efficient. I personally would not attempt that style with a weighted fly and sinking line and the wind in your face.
Last edited by FKrow; 02-06-2005 at 10:49 PM.