How to Play the Spread Effectively

If you can quantify what this difference in the times of spread matters, how much would that affect effectively the bottom line? As in if you took them because let's assume taking the dog and playing the spread before this recent surge. Let's say there was a small advantage on the spread just because of the factors you just talked about. I think it'd be a big advantage. If you need it, I think you can do it. Homework it like that.