Yes you are right I did test it over a longer time frame. Here are all my results:
This includes the testing period. It stretches back a little over 12 weeks.

Selections : 16594
Winners : 1782
Profit after commission (assumption is 5% commission) : 1535.70

My test period was 10,000 bets since then I have been betting live.

I should stress I have a custom written program that I use so you probably couldn't get all the bets on in the short time frame. The software does everything for me.

Good Luck.