amibroker code - repost

I have decided to repost this project with a change in detail. I want a review and possible additions to my amibroker code. I have posted the code below for review. The code is defined for CFD trading on margin. margin in 10 percent in this case. Interest is paid on long open positions. x amount per day Position size is percentage risk (2 %) * equity/ 2 * atr(100) Buy Filter is fast moving average > slow moving average Buy Filter is the moving average 10 of Rate of change (63) > moving average 25 of Rate of change (63) Buy if todays close is higher or equal to the highest close in the past 50 days. The opposite is applied to a sell position. Close is trailing stop 3 * ATR(100). Note this is the same for short positions CODE: SetOption("InitialEquity", 50000); SetOption("MinShares", 50); SetOption("MarginRequirement", 10); SetPositionSize( 2, spsPercentOfEquity )/(2* ATR(100)); MAFAST = EMA( Close, 50 ); MASLOW = EMA( Close, 100 ); ROCma1 = MA (Close,10); ROCma2 = MA (Close,25); ROCmaF = ROC( ROCma1, 63 ) ; ROCmaS = ROC( ROCma2, 63 ) ; HighestValue = HHV(C,50); LowestValue = LLV(C,50); Buy = C >= HighestValue AND MAFAST > MASLOW AND ROCmaF > ROCmaS ; Short = C stop[ i - 1] ) { temp = Close[ i ] - myATR[ i ]; if ( temp > stop[ i - 1 ] ) stop[ i ] = temp; else stop[ i ] = stop[ i - 1 ]; } else stop[ i ] = initial[ i ]; } Plot( stop, "ATR Stop", colorRed, styleLine ); Sell = C < Ref( stop, -1 ); Buy = ExRem (Buy, Sell); Sell = ExRem (Sell, Buy ); PlotShapes( IIf( stop < Ref( stop, -1 ), shapeDownArrow, Null ), colorOrange, 0, H ); Plot(HighestValue, "High", colorGreen, styleLine, 0,0,0,0);