SPM works, it all depends on your understanding of a working pattern. Which pattern is it? Usually the best one is the one that creates 2 to 3 declining peaks or 2-3 rising lows prior to hitting the 0 line. I would only trade those set-ups using SPM, ie 2-3 failure crosses & only then I would...
Main point is that FA tells you something ain't right with valuations, but it does not indicate when prices might correct, TA does, I would say if you understand FA, then use TA as well for the above reason.
Expectations based solely on fundamental analyses are doomed. Let the chart show you where the price is heading. A P/E does not provide any sort of time frame, you could experience a tremendous drawdown in the mean time. Technical analyses will tell you where the price is heading.
OP asked whether 1 net point a day, every day is possible. He didn't ask about average amount of points per day out of 1 month's stats.
And talking about rocket science, nothing is fault free, remember Challenger?