No one in this world can be 100% accurate to pick stock and win. The best approach is always if you have a system. I use cash flow positive model then following with stocks pick.
If I am right I will continue increase my holding of the stock. if I am wrong, I will cut lose and move to my top picks for the period again.
It also depends on one resources. whether you can have the experience, people and contacts to understand one company in detail.
It can be also one person alignment of character. Green Investor likely focus in eenvironmental friendly business. Some may be limiting themselves because of religious limitation as well.
For me, Cash flow positive model in my portfolio is my experience. I may not grow exponential at the beginning but this will be a stable vechlie that can lead to cross over any limbo. Most important profit from Limbo.