Need an EA that trades by time period

I have developed a spread sheet that keeps track of ½ hr. price movements starting from 1/3/07. It separates and then totals the price movement for each period.
Example: Between 7 AM and 7:30 AM CDT the GBP/USD has gained 459 Pips.
I then scan the totals and try to find ½ hr. time periods that when put together will give the maximum gain.
Example: Between 7 AM and 11:30 AM the GBP/USD has gained 1829 Pips.
I then count the number of trades it would have taken during this period multiplied by the spread and check to see if a profit can be made.
Example: On the GBP/USD 188 trades at 4 pip spread = 752 pips.
1829-752=1077 pip gain.
After 6 months of data I kept track of the trades it would have made for the following month and using a spread sheet determined what stop limit was needed to maximize profit.
For the past 30 days I have papers traded GBP/USD, EUR/USD, and EUR/JPY USD/JPY using this method and show a 1600 pip gain.
I would like to get an EA written that would allow me to enter the time for Entry and Exit and it would need lot size and a stop limit.

attached is a file that may make this easier to understand. I had to delete some early data to get file size small enough to post but it didn't seem to change results to much. Important data starts on row 6487

I have a few EAs that might do the trick. I am confused on what you use to enter your trades? Do you just enter a market order at certain times? Do you go long or short?

Thanks.

I just enter with a market order. On GBP/USD I short early in the day and then go long later in the day. Other pairs I just go long once a day so I would be happy if I could just get the one long trade.

I use a similar system but I only buy during these time periods if a 5 ma is moving in the right direction. Has worked well for me but I do my trades manually. I think it only works because the long term trend has been up. If the trend ever changes to down then these same time frames may become the best time for short entries.

can you explain how to read your spreadsheet? What does each column mean? Did you note if you went long or short in the results section?

Attached file will explain how spread sheet works. May not be exact because I am constantly making changes to improve it but should be close.

I am looking for another indicator that can be added in order to eliminate some of the bad trades and a fast MA may work but I haven't had time to check it out yet.

Does your sheet tell you at what times the market is slowest? For example, on EURUSD, when does it move the least amount?

1 PM-7PM EDT Except on FOMC days