Hey Cone D,
as you know the difference is that when we choose a trading portfolio we place them all on the account, and we eliminate the losing ones.
In the standard way of trading Expert Advisors on separate chart windows is still trading portfolio because we trade them all together. But here we trade first on Demo, and we place on live the top performers.
Now, personally, for me, the good point of trading portfolio Experts is that we do not miss the profits that are on Demo. What do I mean?
When you test separate Expert Advisors on a Demo account, you place them on the Live after you see the profits with the chosen EAs, right? But these are exactly the profits we miss. Because they are on the Demo account, not in the live.