I have tried spread trading for a few days. It is a new experience that is totally different from directional trading. I tried GBL/GBM (1:3) and ESTX/DAX (3:1) spreads. I only used market orders. 1. There are some times both legs are positive (very nice ) but some times both are negative (horrible ). 2. The spread ratio is rather subjective. For the GBL/GBM , some people said 1:4 other said 1:3 still other said 1:5. The ratio can greatly affect the result. 3. Still have the temptation to cut the profits short and let the losses run. I also tried to add to the profit leg but don't know it is good or not. Is it common for spread trading? Any comments are welcome.