ah yes, you have it right. Once the MA pattern is trending up, by then it's obvious and it's usually too late to get in.
The Weekly 10-20-30 is probably good to watch for long-term uptrends, to buy the dips on the daily chart when the weekly trend is going up. Good idea!
ooh - try this. Take your Fan formula and make it a lower study for a chart. It looks like a step "up" from -3 could be a good entry...and when you're at +3, well you know what to do :)