I guess I agree with that. If I felt that one stock was going to increase 54% and the other 15% I'd probably buy the one increasing 54% I was going to say that your method of trading doesn't need split second execution. How much time does it take to calculate a position size? Wouldn't buying a fixed dollar amount be better than buying a fixed number of shares. I am beginning to scale into my positions. If the trade goes against me my loss is smaller and if it moves in my direction I add and still keep my losses under control.