So I'm back-testing an EA that I wrote, within the MT4 'Strategy Tester'. Without getting into details of the code, I have my EA running on hourly 1.5 years in Strategy Tester that will consistently give me the same very positive result when using particular input settings. Now when I go into the input settings and make 1 single minute adjustment to a setting that should not result in any significant change from the prior settings (the small adjustment is to do with how much the trailing stop loss trails by once the profit is already locked in, which I'm only changing by 1%) -- the end result is drastically changed, to the point that it doesn't even finish the test because the account is wiped barely 1 month in.
Now I've found this kind of thing to happen a lot when making seemingly minute adjustments to input settings or code, where you'd really not expect any significant change in the final test result.
I'm still open to the idea that there is perhaps some logical reason for it (to do with input settings/code), but more and more I'm becoming suspicious of the reliability of the MT Strategy Tester itself.
Just wondering if many others here who do a lot of back-testing within MT4 with their own EAs also notice this?
Now I've found this kind of thing to happen a lot when making seemingly minute adjustments to input settings or code, where you'd really not expect any significant change in the final test result.
I'm still open to the idea that there is perhaps some logical reason for it (to do with input settings/code), but more and more I'm becoming suspicious of the reliability of the MT Strategy Tester itself.
Just wondering if many others here who do a lot of back-testing within MT4 with their own EAs also notice this?