I actually think your earlier comment that some systems seem designed to make trading difficult was almost correct - some systems really are designed to make trading LOOK difficult, and for two rational reasons - one is to make us think the system is really efficient, well designed and thoroughly tested, the other is to differentiate the system and its author from all the others out there.
In reality, there are just two ways of playing this game -
- buy because price has been rising, or
- sell because price has been rising
No.1 is trend-following and tends to be lower risk and open to longer-term positions. No.2 is trading reversals and suits short-term positions which can make dramatic profits, but with a high risk of loss.
Which is best depends largely on the trader’s personality more than the particular market sector, and many traders opt for a blend of both.
What I would suggest is that trend-following engages a wider perspective - e.g. EUR/AAA shows a buy signal which formed since Tuesday but is in a down-trend since October: So why buy now? Alternatively, EUR/AAA is in a down-trend, but the other 6 EUR-based charts are in uptrends since November. So why sell EUR/AAA? You might see right away that entry signals are the least important issue in trend-following.