The genius of the AIM concept, to me, is that by following the general rules, one will be able to buy relatively low, and sell the same shares at a profit.....given that one has the patience to wait for the complete market cycle.
I am fairly sure that NEITHER the BTB method, or various tweaks, will "always" be optimum....every market cycle seems to be somewhat different...one method will outperform in one cycle, and another method will outperform in the next cycle.
Searching for the "always optimum" method is futile (just my opinion)...so..what is one to do?
Thank Goodness, the Lord gave us a brain....we are all individuals...we have different life needs...different asset levels..different tolerance of risk, etc.
Once the AIM concept is understood, I think each should use whatever version THEY are most comfortable with....BTB or one or more of the various tweaks. There is no real right or wrong answer, except this answer....that our aim is to buy low and sell high.
regards.