Going back to your question, I would say that 1100 is a good amount of bets although since it's only in six months it might be affected by something specific or seasonal.
My general advice to everyone is to backtest their systems with as much data they can find.
Nothing can guarantee the success of your system but you can have a general idea of how it behaves even if it's a losing system.
The more bets the better, which is reasonable.
A large amount of bets will show the performance of your system without having to worry about periods of special circumstances, that might influence greatly your system if the number of bets is small.
As mentioned before no system will work forever, that's why you might need to correct it, improve it or stop using it.
An important thing to keep in mind, is not just profit, but how much your capital fluctuates and having a good staking plan.
It would be very interesting if you could show us some charts about the profit, hit rate and the capital through time.
It's a high number for profit and it's also a high number of bets, so it's intriguing.
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