Might I suggest that you check the posts from:
AlexanderG on Follower guide to consistent profits
LeslieGray on Anyone follow 8 systems or more?
They have suggestions for using the trader stats provided on C2 (trade size, drawdown etc) and scale your commitment to your level of comfort. Personally, I find that this is crucial. You can always err on the side of caution and make adjustments as time goes by.