Doesn't Automatic Investor allow you to test different PC feedback levels in its back testing mode?
Indeed it does - which is where I found the 45% "sweet spot" for AVIC. The conundrum, is knowing what to set the value to in advance so as to obtain the optimum return before you put on the 20/20 hindsight glasses. Hmm, I wonder if there's a company that makes crystal balls we should invest in, of course, they have to work first, small detail there...
Best,
AIMster