YCOY,
I've found Method 1 faster and the input of the numbers into the calculator is much easier and possibly saves a precious few seconds.
I didn't use AFT notes for studying but +/- 1kt is very desirable. If you make absolutely no mistakes in anything else, you could probably be a few more knots off and still get the right answer. However, using Method 1, there is no reason why you should be more than 1 knot off from the correct TAS.
Last edited by Centre of Pressure; 20th Aug 2013 at 08:18.