There are many aspects of the question on which there are reasonable differences of opinion. For example, Bernstein has one way of incorporating the valuation factor into his analysis, and he comes up with an SWR of 2 percent in the year 2000. JWR1945 favors an alternate approach and he comes up with 2.3 percent. Both approaches are valid. It's legitimate for us to have discussions as to which is better, but there is no need for us to achieve a consensus on this point.
Ok, we have Bernstein using the Gordon equation and (probably) the 4/7 rule and the JWR1945 approach.
Are you satisfied that your swr calculation meets this criterion:
SWR analysis, when it is true to what the data says, is different.
What the data says is not a matter of opinion. Data analysis involves
numbers. Data is hard, objective. You add up all the numbers that bear on the question being examined and you get a right answer to the question posed.
Can we really count on the result with 100% certainty? 95%?