The way the code is writen it uses bar open price to place orders. so if your useing different time periods in your tests you will get different results.

Different data feeds make a big differents in outcome. My test yesterday for example showed a 169 pip loss, Hans data feed showed a 120 pip loss. thats 49 pip difference in just one day. Hans is useing, I believe, GFT data feed, were I used SBFX data, Pip Spread is 4 pips with SBFX! Data will make a big differences in outcome.