Hi Capt,
But then we all see things differently.
Exactly!
I taught myself to throw flies at age 11 or 12 from two articles in Field and Stream. The second was how to double haul. After I got out of the service 12 years later, I grew tomatoes in CT and sold them at the beach for a living (using a scale and the honor system of paying for them), while I threw flies from the jetty with a brand new glass Fenwick 12 wt. that I special ordered.
I wanted to get back to the Fl Keys, close to where I grew up. After a couple months of daily casting for hours, I was throwing the backing knot out of the rod tip. This was 1969 when few people up north threw flies in the salt, and other fly guys (freshwater) sometimes would walk out and ask me how I could throw the fly that far without any stop.
They were seeing a 3:30 to 8:30 rod arc when it was supposed to be a 10:00 to 2:00 arc or something like that. I couldn't explain it to them because I had no idea what I was doing - only that it worked for me. I had never read anything about the fly cast itself since I was 11 or 12 years old, nor had I ever had a lesson.
Now, however, I read everything I can about the mechanics of the cast, the aerodynamics of different loop shapes, how to change loop shapes, the effects of different line tapers and so on.
My own first preference is to read articles like the one above which are written from info gathered in controlled studies using high speed cameras and so on. That way I don't have to rely on how the author "sees things".
The reason I do this is because I would like to be able to teach casting, and I think I could do it better if I knew what is going on during all different styles of fly cast. Then I should be able to better analyse what casters are doing wrong when they ask for advice.
I think a good instructor has to be able to describe the same thing many different ways to many different people as you have said on this site many times, and get inside their head to see what way would be the easiest for them to understand.
But before doing that, I have to know what is wrong with the cast in the first place, and how to best correct it.
Cheers,
Jim