ok so you are saying you can scalp short with 100% accuracy?? 100% risk free ?? No loss ??
"You short futures on signals and cover them on getting your greed level profits. You don't keep on shorting for no reason."
So as per your logic you can also buy future on signals and cover greed level profits . why let that go ?? or are you handicapped for longs ??
If you are investing then can pledge that stocks and use it for futures margin for playing both Long and short on any instrument that to number of lots not just single lot.