I've also been messing with a 50SMA/ K-S cross system as well. I have been nailing the market about 90% of the time!

I'm using a few different indicators, multiple time frames and a couple additional MA's for confirmation. When all my indicators line up the trade is as close to a sure thing as it can be! (ATLEAST 30 pip profits per trade with 2 or 3 trades per day per currency. I trade EUR, GBP, CHF & JPY all against the USD. Thats 8 trades times 4 currencies, 32 trades. Let's say an 80% win rate is 25 winning trades. Thats 750 possible pips per day! I use 20 pip stops, so if the five losers cost me 100 pips I STILL WIND UP WITH 650 PIPS PER DAY!!! The trick is watching the market to catch all the trades. If we can only automate this... Hmmm...)
I noticed that even without all the other indicators I use, when price crosses the 50SMA and K-S line it continues in that direction. Now when you add multiple timeframes, RSI, a couple other MA's, Fibs, and trendlines you just nail it!!!
I am going to continue to test my exact formula for a while until I optimize it to the best of my ability. I will then expose it here in hopes that you fine, talented people can help further tweak it so we can all benefit!!!
Billy