Regarding not buying more if something goes down a lot. I have done very well with STKL as it went from 6 to 15, back to 5 and is now just under 10
I've just run these two AIM versions to compare the differences between classic AIM (50% initial cash, left to run as-is) and AIM-HI (20% cash, with 20% Vealie)
I suspect anyone who AIM'd either way would have been content with the overall results.