iam currently looking at two systems,i wont mention any names just incase iam percieved as a spammer lol,the first system trades the S&P500 and the russell,the second system trades only the dow.Now i have done a trial for the system that trades the dow and a difference that i noticed is that the system for the dow uses a much larger stop loss of 20+ points in most cases than the other which only uses about 2 points stop loss.I realise they are different markets and point $ values are different,but what are peoples opinions on whether they would think that the odds would be better with a larger/smaller stop loss?