Thanks for your revealing posting. The beauty of programs like AI that support backtesting is that they unemotionally support or debunk a methodology. There are many a management systems that sound logical and appear to be the acceptable Holy Grail in investing but it is only by proper backtesting that they can be confirmed or debunked.
Could you be more specific and post your various results so as to enlighten us all. There appear to be many AIM followers but I do not remember seeing any systematic analysis of item by item ie. etf's etc. ( no stocks as stocks depend very much on choice ).
AIM is a stock management program and daily, monthly, yearly are just data points. If it is doing it's job then it should be able handle any and in theory all the way down to even 1 minute data points. I suspect that many have accepted the logic of AIM without doing any rigorous backtesting. AIM might not hand you a loss but is it as good a management system as it could/should/would be ?