I have to say I'm not surprised that no one uses a whizz-wheel if they are taught the insanely complex method described by Keith Williams. I can't say that he's wrong, but what a stupendously labour intensive way to do a simple drift calc!
Here are his figures;
40 knots wind blowing from 180.
100 knots TAS
We want a true track of 210.
1) Set wind vector
Set 180 at top of wheel.
Mark a point at 40kts below the centre dot.
2) Set TRK
Set 210 at top.
Using the squared section of the slide draw a vertical line through your wind vector dot. (up/down the scale)
3) Calculate result
Run the slide up to centre over your TAS on the radially expanding section.
Rotate wheel until that previously vertical line is aligned parallel with the radial one/s beneath it.
Read HDG off top of wheel; drift angle, as if you wanted to know it, above the TRK (210) and GS under the wind vector dot.
End.
Isn't that about a tenth the effort of all that to-ing and fro-ing of fudging your guesses until they shape up?
All we are doing is drawing the important part of the vector triangle against a background scale.
What's more I bet most people could do this, and time and fuel calcs on multi legs quicker and more consistently accurately (ie less gross errors) on a whizz wheel than they can on any calculator.
Plus, my Mk4B doesn't quit when the batteries go flat