its not a hedge system.
The risk is 5% which is big. I could trade smaller amounts but I choose not to. The fact that the risk is 5% of my account size obviously does not take into account my available funds. As a percentage of my available funds this 5% would seem very conservative but why should I leave my money tied up in a broker when I can just risk a larger amount of my broker balance instead.
As for 'will blow it soon' - I hope not ;)