Forex 1 Minute Scalping strategy on GBP-JPY - Metatrader 4 strategies

So here is a strategy I have trying to work out fot the past month, and I seem to be getting better at it. What would be very nice, is if anyone can help me tune it a bit more. Currency:
GBP/JPY or USD/JPY (though i use it mainly on gbp/jpy:

Timeframe: 1M, 5M, 15M

Indicators: 3 sets of bollinger bands:
1) Period 50. Deviation 2 (RED)
2) Period 50. Deviation 3 (orange)
3) Period 50. Deviation 4 (Yellow) (the template for this bollinger bands can be downloaded form this post) 

Once you load your template you will notice the three sets of bollinger bands. Now, price will constantly range between these lines.

 Sell strategy: 

When price crosses the upper red band , at least half way to the orange band (if it gets to the yellow band is better but not as usual) Then the price will tend to retrace towards the center of the bollinger bands, you profit form this retracing..

 Buy Strategy:

 it is the same as selling, the difference is that we will wait for the price to range between the lower red and yellow bands, and trade the retracing towards the center. Tips: do not trade on ranging ,or quiet markets, do not trade previous to news releases. Go for 5 to 10 pips.

 Great system to trade between opening of london session and the closing of the japan session. Stop Loss: since this strategy requires you to look at the screen (remember this is the 1M time frame) I tend to have two kinds of stops: time based and loss based. Time based: Try and figure out how long will it take the market to get in your expected direction, if the time that you planned is already due, then close the order. No point on waiting for a loss...

Stop Loss:

Since you are trading a very tight time frame your stops should also very very tight. Sometimes, you will profit from a 3 minute trade and you wont be able to set a proper S/L.

 So your stops will be given to you by your money management system... What I would like to do is to study wether to add or not some extra indicators. I attach the results from my last week 102% profit, +80% of profitable trades. Any help is welcome Chelo Template is attached as Rar file and goes in your templates folder in the MT4 directory...

DetailedStatement_0.html
 1minuto_0.rar