Thanks for the link, Tom, to the old aim-users stuff.
The answer where you say:
is very interesting because it is hard to find good ETFs that have a high enough volatility. Doing what you suggest seems to work well. However, in backtesting I have found that setting the buy SAFE higher than the sell SAFE seems to get a higher rate of return. I suspect this is because it slows down the buying as stuff declines.
Playing with the minimum stock purchase (MSP) seems to help as well. There appears to be a range where the return does not change so I've been selecting the midpoint as the MSP.
This is, of course, straight AIM, no Vealies or other deviations.