Yes party!
That's the killer of many a good system or ratings punter's dream.
I think I mentioned it before, I done some research for others, on a system that proved to be extremely profitable even after, must be six years by now, but depending on where you started the cycle, you could have lost a packet for a short time.
But if you know that in the end, and I am talking here, weeks not months let alone years, you can make a profit, then I can't see why not do it!?

I am a ratings man, but if you are using systems you would be in a better position to start betting as a pro, simply because you can have two or more profitable systems running along, at the same time.
Good luck