The AIM technique looks quite interesting. I think I've independently devised a similar method which I have just begun to use with mutual funds, with the benefit one doesn't worry about commissions. It's similar to AIM in that it's contrarian and one buys only when the investment is down for the day.
Certainly one wanting to improve on dollar-cost-averaging is a useful goal as basic DCA does have it's flaws. Lichello does speak to an alternative technique he devised in his book called Twinvest.
An example and more discussion of this technique can be found here:
News 
Market Data 
Discover 
